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Avaya Configuring SNMP, RMON, BOOTP, DHCP, and RARP Services User's Manual

1. Table 2 7 Default Size for Capture Buffer Installed DRAM MB Default Size KB 2 32 4 64 8 256 16 512 You can also request a larger buffer size up to 15 MB In any case if there is not enough memory currently available to satisfy the request the agent will provide a buffer that uses all available memory You can determine the maximum number of packets that an agent can capture in a buffer as follows buffer size packet slice size 20 bytes 2 24 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts Example You specify a buffer size of 32 KB and a packet slice size of 1 KB After checking the available memory the RMON agent allocates the buffer size you requested The buffer can hold a maximum of 32 768 1024 20 or 31 packets Note The RMON agent allocates the full amount of memory you specify for the packet slice size to each packet even if the packet size is smaller than this amount For this reason Bay Networks recommends that you set the packet slice size to the smallest size possible The maximum packet size is 2 KB Alarm and Event Groups When you enable the Ethernet DCM the router does not create default alarm or event entries We recommend that you create alarm and event entries using a network management application You can create as many alarm or event entries as memory permits up to the RMON limit of 65 535 entries The memory limitation for alarm and
2. You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens 5 Click on Forward I F The BOOTP Relay Agent Forwarding Table window opens 6 Select the address pair you want to delete continued 117362 A Rev A 5 9 Configuring SNMP RMON BootP DHCP and RARP Services Site Manager Procedure continued You do this System responds 7 Click on Delete The BOOTP Relay Agent Forwarding Table window no longer displays the address pair 8 Click on Done You return to the Configuration Manager window Disabling BootP Route Forwarding By default the route interface through which the router forwards BootP or DHCP packets to servers on the network is enabled You can disable BootP or DHCP packet forwarding through this route by setting the Enable Disable parameter to Disable To disable BootP router forwarding complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Tab
3. Specifying a Threshold Object Name By default the ASN 1 object identifier is the object name that appears in the Threshold Label parameter field You can replace the ASN 1 object identifier by specifying a name for the object in string format The string you enter appears in the log file making it easier to identify the object that is the subject of the trap To specify a threshold object name complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose Global Protocols The Global Protocols menu opens 3 Choose Thresholds The Thresholds menu opens 4 Choose Thresholds The Thresholds Interface Lists window opens 5 Set the Threshold Label parameter Click on Help or see the parameter description on page A 15 6 Click on Done You return to the Configuration Manager window 117362 A Rev A 3 35 Chapter 4 Customizing a DCM for RMON Topic Page Ethernet DCM and RMON Summary 4 1 Modifying the DCM Configuration 4 2 Managing a DCM Using the Technician Interface 4 12 Viewing and Analyzing Statistics Using Optivity 4 12 This chapter describes how to customize an Ethernet data collection module DCM as a remote monitoring RMON device It also describes how to modify the DCM configuration by changing DCMMW configuratio
4. 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens This window lists all the IP interfaces that you have configured for BOOTP services on the router Click on Forward I F The BOOTP Relay Agent Forwarding Table window opens 6 Select the address pair you want 7 Set the Pass Through Mode parameter Click on Help or see the parameter description on page A 26 8 Click on Apply 9 Click on Done You return to the Configuration Manager window To delete both DHCP and BootP from an IP interface delete the BootP relay agent on that interface Refer to Deleting the BootP Relay Agent from an IP Interface on page 5 18 for instructions Deleting DHCP Globally To delete DHCP globally you must delete BootP globally See Deleting BootP Globally on page 5 18 for instructions 6 4 117362 A Rev A Chapter 7 Customizing RARP Topic Page Customizing RARP Parameters 7 1 Disabling and Reenabling RARP Interfaces T2 Defining the RARP Mapping Table KR Disabling RARP Globally 15 Deleting RARP Globally ree This chapter describes how to customize RARP services It assumes you have configured an IP interface using the default parameters and enabled RARP services as described in Chapter 1 and that you understand the RARP concepts in Chapter 2
5. 6 Click on OK You return to the Configuration Manager window Saving the Configuration Information You can specify whether or not to save the configuration information in DRAM to the DCM flash memory To save the configuration information in DRAM to the DCM flash memory writing over the existing configuration file set the Save Configuration Info parameter to Save To avoid overwriting the DCM configuration file set the Save Configuration Info parameter to No Save To save the configuration information complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Platform menu opens choose Platform 2 Choose DCM 11 0 and later The DCM 11 0 and Later menu opens 3 Choose Global The Global menu opens continued 4 6 117362 A Rev A Customizing a DCM for RMON Site Manager Procedure continued You do this System responds 4 Choose Base Module DCM or The Edit Base Module DCM Parameters Expansion Module DCM window opens or the Edit Expansion Module DCM Parameters window opens 5 Set the Save Configuration Info parameter Click on Help or see the parameter description on page A 18 6 Click on OK You return to the Configuration Manager window Specifying the Maximum Number of RMON Hosts You can specify the maximum number of host addresses to be collected in ea
6. Table 2 4 ARN Requirements for RMON Software Hardware Minimum Version DCM hardware Revision D or later Boot PROM Version 1 17 arnboot exe v1 17 or later Diagnostic PROM Version 1 30 arndiag exe v1 30 or later BayRS Version 11 02 arn exe v11 02 or later DCM agent software Version 1 4 1 in11 141 0bj or Version 1 4 2 in11 142 0bj Caution Enabling a DCM with DCM agent software Version 1 4 or earlier could disable the ARN For information about upgrading BayRS or the DCM agent software see Upgrading Routers from Version 7 11 xx to Version 12 00 The upgrading manual also describes how to determine the version of DCM hardware and software you are currently using 2 18 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts Bay Networks provides RMON network management support for BayStack routers in the following components of the Optivity Enterprise software suite e Optivity Analysis Version 7 0 or later e Optivity Planning Version 7 0 or later e Optivity Design and Analysis Version 6 1 AN ANH only RMON Applications Some network management applications automatically set up their own configurations for an RMON group without checking to see if the RMON agent already has a default configuration In addition when you terminate those applications they may not remove the configurations they set up for the RMON agent These features can result in the RMON agent using excessive amounts o
7. Site Manager Procedure continued You do this System responds 9 Choose Edit Manager The SNMP Manager window opens 10 Set the Trap Port parameter Click on Help or see the parameter description on page A 6 11 Click on OK You return to the Configuration Manager window Specifying a Trap Type You can specify one of four types of traps that the SNMP agent can transmit to the manager Generic Specific All or None Table 3 2 describes these four trap options Table 3 2 Trap Types Transmitted by the SNMP Agent Trap Type Description Generic This is the default trap type It transmits the well defined SNMP traps cold start warm start and authentication failure traps to the manager The well defined cold start and warm start traps are automatically active in the SNMP agent however you must enable the Authentication Failure Traps attribute for the agent to transmit such traps to a specified manager Specific Allows you to configure the agent software to transmit all enabled log event traps to a specified manager All Allows you to transmit cold start and warm start traps and all enabled log event traps to a specified manager None Prohibits the SNMP agent from transmitting traps to a specified manager Using the BCC By default the SNMP agent transmits Generic traps to the manager To specify a different type of trap navigate to the manager specific prompt and
8. 117362 A Rev A 5 7 Configuring SNMP RMON BootP DHCP and RARP Services Creating a BootP Relay Agent Forwarding Table You must create a BootP relay agent forwarding table for every transient router passing BootP traffic between a router and the BootP server The BootP relay agent forwarding table consists of IP interfaces that you configure to receive the incoming BootP request packets and to forward the outgoing BootP request packets The BootP relay agent forwards BootP request packets based on the IP addresses of the interfaces in this table You can add multiple pairs of incoming and outgoing interfaces to support connections to multiple routers in your network For more information about configuring a forwarding table refer to Configuring IP Services Specifying the IP Interface Input Output Address Pair You create the BootP relay agent forwarding table by specifying the IP interface addresses input and output of the pair that you want to receive and forward BOOTREQUEST packets If you enter an IP address that you have not configured on the router the notation appears before the IP address example 111 111 111 111 When you configure the IP address on the router Site Manager replaces with the appropriate address Do not specify an unnumbered interface for the input or output IP interface address parameters If you want to use an unnumbered interface to transmit BOOTREQUEST or DHCP packets to the servers yo
9. You can enable RARP services most easily by accepting all the default parameter values However you may want to change these values depending on your network requirements This chapter describes the choices you can make to use RARP most effectively on your network Customizing RARP Parameters After you have enabled RARP services on your router see Chapter 1 you can customize the router software for your specific requirements Use the remaining sections in this chapter as a guide 117362 A Rev A 74 Configuring SNMP RMON BootP DHCP and RARP Services Disabling and Reenabling RARP Interfaces You can disable or reenable individual RARP interfaces by selecting them from a list of interfaces in the RARP Interface Table To disable and reenable RARP interfaces complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose Reverse ARP The Reverse ARP menu opens 4 Choose Interface Table The RARP Interface Table window opens 5 Setthe Enable Disable parameter Click on Help or see the parameter description on page A 27 6 Click on Apply 7 Click on Done You return to the Configuration Manager window Defining the RARP Mapping Table The RARP mapping table lists the clients on the network that use the router s RARP se
10. BootP Relay Agent Overview on page 2 26 for information about the packet relay process 2 30 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts Although BootP and DHCP use the same UDP port numbers 67 and 68 they differ in the following ways DHCP defines a mechanism for clients to obtain their IP network address for a fixed period of time lease allowing for reassignment of expired IP network addresses to different clients DHCP provides a mechanism for clients to acquire all of the IP configuration parameters needed to communicate on a network DHCP packet length is longer than for BootP The additional packet length allows a DHCP server to provide the client with all the IP configuration parameters that it needs to operate DHCP is a more complicated protocol than BootP DHCP has seven message types BootP uses only two Acquiring a New IP Address and New Configuration Parameters DHCP acquires an IP address and other configuration parameters for clients This process involves the following stages Identifying DHCP servers Requesting IP information Receiving IP information Accepting IP information 117362 A Rev A 2 31 Configuring SNMP RMON BootP DHCP and RARP Services Figure 2 7 shows the first stage of the process Server 1 Client broadcasts 2 BOOTP relay agent L7 a DHCPDISCOVER transmits the packet DHCPDISCOVER LILLI Client packet to serve
11. Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose Reverse ARP The Reverse ARP menu opens 4 Choose Delete RARP A confirmation window opens 5 Click on OK The Configuration Manager deletes RARP from all router interfaces and returns you to the Configuration Manager window 117362 A Rev A 7 5 Appendix A SNMP DCM BootP DHCP and RARP Parameter Descriptions This appendix contains reference information about customizing the parameters for the SNMP DCM BootP DHCP and RARP interfaces you configure on the router Topic Page SNMP Global Parameters A 3 SNMP Community Parameters A 5 SNMP Manager Parameters A 6 SNMP Trap Interface Parameters A 7 SNMP Threshold Global Parameters A 8 SNMP Threshold Interface Parameters A 9 DCM Global Parameters A 15 BootP Relay Agent Interface Parameters A 20 BootP Address Parameters A 22 BootP Client Interface Address Parameters A 24 BootP Preferred Server Configuration Parameters A 25 DHCP Parameters A 20 RARP Interface Parameters A 27 RARP Address Parameters A 27 117362 A Rev A A 1 Configuring SNMP RMON BootP DHCP and RARP Services For each parameter this appendix provides the following information Parameter name Configuration Manager menu path Default se
12. Use the following guidelines to configure DCM global parameters in the Edit Base Module DCM Parameters window Enable Disable Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM Enable Enable Disable Enables or disables DCMMW the DCM software subsystem and therefore the DCM To enable the DCM select Enable To disable the DCM select Disable Use this parameter to reboot the DCM by disabling then reenabling DCMMW 1 3 6 1 4 1 18 3 3 2 16 2 1 3 117362 A Rev A Configuring SNMP RMON BootP DHCP and RARP Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Boot Option Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM Local Local Download Specifies whether the DCM uses the image in its own flash memory SIMM for booting or a boot image copied from the BayStack router s flash memory card to DCM shared memory DRAM Select Local to specify the image file in DCM local flash memory as the DCM boot image Select Download to specify an image file on the BayStack router s flash memory as the DCM boot image When the DCM boots in Download mode DCMMW software moves a copy of the image to DCM shared memory You specify the downloaded image using the Image Name parameter 1 3 6 1 4 1 18 3 3 2 16 2 1
13. Configuring SNMP RMON BootP DHCP and RARP Services BayRS Version 12 00 Site Manager Software Version 6 00 Part No 117362 A Rev A September 1997 Bay Networks ES Bay Networks 4401 Great America Parkway 8 Federal Street Santa Clara CA 95054 Billerica MA 01821 Copyright 1997 Bay Networks Inc All rights reserved Printed in the USA September 1997 The information in this document is subject to change without notice The statements configurations technical data and recommendations in this document are believed to be accurate and reliable but are presented without express or implied warranty Users must take full responsibility for their applications of any products specified in this document The information in this document is proprietary to Bay Networks Inc The software described in this document is furnished under a license agreement and may only be used in accordance with the terms of that license A summary of the Software License is included in this document Trademarks AN BN BNX GAME Optivity and Bay Networks are registered trademarks and ANH ARN ASN BayStack BayStream EZ Install Bay Networks Press and the Bay Networks logo are trademarks of Bay Networks Inc All other trademarks and registered trademarks are the property of their respective owners Restricted Rights Legend Use duplication or disclosure by the United States Government is subject to restrictions as set forth in subpara
14. SNMO0011A Figure 2 2 Sample RMON Configuration RMON Architecture The Bay Networks implementation of RMON consists of the BayStack router base modules and ARN Ethernet expansion modules a data collection module DCM data collection module middleware DCMMW and the DCM flash memory module Figure 2 3 117362 A Rev A Configuring SNMP RMON BootP DHCP and RARP Services Base module SNMO0010A Figure 2 3 Bay Networks RMON Architecture The Ethernet DCM physically connects to the BayStack router base modules and the ARN Ethernet expansion modules The Ethernet DCM contains a flash memory module for its own boot image and configuration files The Ethernet DCM runs the RMON agent software that e Gathers statistics by monitoring packets on an Ethernet segment e Stores the information according to the RMON MIB specification in compliance with RFC 1757 To communicate with the RMON agent software on the Ethernet DCM the router uses a software subsystem the DCMMW This software subsystem enables and configures an installed Ethernet DCM and allows you to modify the Ethernet DCM configuration boot the Ethernet DCM and disable the Ethernet DCM using Site Manager You can use an SNMP based network management application that supports RMON to view RMON statistics RMON MIB Groups The Ethernet DCM board supports a set of RMON MIB groups RFC 1757 defines the function and organization of these groups Bay Networ
15. You do this System responds 1 In the Configuration Manager window The Select Protocols window opens select the link or net module connector on which you are enabling RARP services 2 Choose Reverse ARP When you choose Reverse ARP you automatically choose IP 3 Click on OK The IP Configuration window opens continued 1 12 117362 A Rev A Starting SNMP RMON BootP DHCP and RARP Services Site Manager Procedure continued You do this System responds 4 Specify an IP address for this interface There is no default for the IP address You must supply an address or enter 0 0 0 0 to indicate that this is an unnumbered interface For information about unnumbered interfaces see Configuring IP Services 5 Edit or accept default values for the remaining IP interface parameters To accept the default values click on OK To edit IP interface parameters click on Details See Configuring IP Services for information about editing IP interface parameters Customizing RARP For information about modifying RARP parameters refer to Chapter 7 117362 A Rev A 1 13 Chapter 2 SNMP RMON BootP DHCP and RARP Concepts Topic Page SNMP Overview 2 1 SNMP Implementation Notes 2 4 RMON Overview 2 9 RMON Interoperability Issues 2 17 BootP Relay Agent Overview 2 26 DHCP Overview 2 30 RARP Overview 2 36 This cha
16. select BOOTP and DHCP to relay both kinds of requests 1 3 6 1 4 1 18 3 5 3 8 3 1 1 16 117362 A Rev A A 21 Configuring SNMP RMON BootP DHCP and RARP Services BootP Address Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Use the following guidelines to configure BootP and DHCP parameters in the BOOTP Addresses window Input IP Address Configuration Manager gt Protocols gt IP gt BOOTP gt Relay Agent Interface Table gt Forward I F gt Add None Any valid IP address Specifies the IP interface that receives BOOTREQUEST packets from clients Enter the IP address of a numbered network interface that you want to receive BOOTREQUEST or DHCP packets from clients then configure this IP address on the router if you have not already done so 1 3 6 1 4 1 18 3 5 3 8 3 2 1 3 Output IP Address Configuration Manager Protocols IP BOOTP Relay Agent Interface Table gt Forward I F gt Add None Any valid IP address Specifies the IP interface that forwards BOOTREQUEST packets to an external network Enter the IP address of a numbered network interface that you want to send BOOTREQUEST or DHCP packets to servers and then configure this IP address on the router if you have not already done so Do not specify an unnumbered interface for this parameter If you want
17. 3 13 Configuring SNMP RMON BootP DHCP and RARP Services Using Site Manager Configuring a Manager to Receive Traps To add a manager to a particular community complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose SNMP 4 Choose Communities The SNMP menu opens The SNMP Community List window opens 5 Choose Community The Community menu opens 6 Choose Managers The SNMP Manager List window for that community opens 7 Choose Manager The Manager menu opens 8 Choose Add Manager 9 Enter the IP address of the SNMP manager you want to add The Add SNMP Manager window opens 10 Click on OK Configuration Manager adds the manager to the community After you add a manager to a community you can configure the manager to receive traps by specifying its UDP port number and the types of traps the agent transmits to that manager When you configure a manager to receive specific traps or all traps see Table 3 2 the router sends this manager all enabled event traps There is no MIB correspondence between a specific SNMP manager and a trap entity Rather all SNMP managers that you configure to receive specific traps receive all traps you have configured 3 14 117362 A
18. 7 11 xx to Version 12 00 The upgrade guide also describes how to determine the version of DCM you are currently running Configure an Ethernet interface for each LAN segment you want to monitor Install and configure on your network management station an RMON network management application such as Optivity LAN or Optivity Analysis to view and analyze statistics generated by the Ethernet DCM Enabling the Ethernet DCM The quickest way to begin using RMON is to enable a newly installed data collection module DCM The DCM runs the RMON agent software that gathers statistics for Ethernet remote monitoring support You enable the Ethernet DCM by creating the data collection module middleware DCMMW software configuration using the default configuration parameter values For information about modifying the default configuration parameters see Chapter 4 Customizing a DCM for RMON To enable the Ethernet DCM from the Configuration Manager window complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Platform menu opens choose Platform 2 Choose DCM 11 0 and later The DCM 11 0 and Later menu opens continued 117362 A Rev A 1 7 Configuring SNMP RMON BootP DHCP and RARP Services Site Manager Procedure continued You do this System responds 3 Choose Create Base Module DCM The Edit Base Module DCM
19. 8 Image Name Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM None but you must specify an image name when the Boot Option parameter is set to Download An ASCII text string no more than 255 characters Specifies an image file on the BayStack router s flash memory card The image name must be a fully qualified file name including both the volume and file name Enter the volume and file name for the image that you want the DCM to boot using the format volume number filename for example 1 dcm image 1 3 6 1 4 1 18 3 3 2 16 2 1 7 A 16 117362 A Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID SNMP DCM BootP DHCP and RARP Parameter Descriptions Image Save Mode Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM Save Save No Save Specifies whether the DCM saves the active image in its local flash memory SIMM or keeps the image in shared DRAM only To save the DCM boot image file to the DCM local flash memory writing over the existing saved image select Save Select the No Save option if you do not want to save the DCM boot image file The image remains in DRAM until the next time the DCM boots 1 3 6 1 4 1 18 3 3 2 16 2 1 9 Configuration Mode Configuration Manager gt Platform
20. FURTHER AGREES THAT THIS AGREEMENT IS THE ENTIRE AND EXCLUSIVE AGREEMENT BETWEEN BAY NETWORKS AND LICENSEE WHICH SUPERSEDES ALL PRIOR ORAL AND WRITTEN AGREEMENTS AND COMMUNICATIONS BETWEEN THE PARTIES PERTAINING TO THE SUBJECT MATTER OF THIS AGREEMENT NO DIFFERENT OR ADDITIONAL TERMS WILL BE ENFORCEABLE AGAINST BAY NETWORKS UNLESS BAY NETWORKS GIVES ITS EXPRESS WRITTEN CONSENT INCLUDING AN EXPRESS WAIVER OF THE TERMS OF THIS AGREEMENT iv 117362 A Rev A Contents About This Guide Baum OU EE A a i debout Der tain duced tuli LC cU CIC see tataeamintuts xviii Conventions bebes E rU NR obe ite o asd GR PRIN ER UEM UE m xviii PGBS oen tcepoaasebo pagas t npe SER ID NDS chai Ex opt E Xix Ordering Bay Networks PUDIICANONS udaescc diu dcen desde d cada dated ted deed XX Bay Networks Customer DENGE cciccticssiucssonttenareceteaeet a a ciues ue psi read eE annie XX a CA Ie HEID m ES xxi Chapter 1 Starting SNMP RMON BootP DHCP and RARP Services Starting Configuration Tools PAE Pepe cde tuti iust au dot REF es et pU dd eaES 1 2 Muse for Global PGRN em c 1 3 Usmo Sie BA IN scars oua dencsebn ducas nc a Sn stri aA a hn db Od 1 3 Usmo ihe BOG ci sareci cancocedatenupadarienadedivaneats Bebe aieo debt eI Net OQ LI IC Od Dep TD aie eas 1 3 Step 1 Contiguning a Physical Gtertabe sospes ie een bic re aae 1 4 Step 2 Configuring an IP WTA seisine tbid ud Pene da Du ct 1 4 Stering SNMP SANES cc
21. ID contains the event code that in conjunction with the entity code uniquely identifies the event Each 32 bit value is accompanied by three variable bindings that convey the event string that describes the trap condition the slot that hosts the entity that generated the trap and the trap severity see Table 2 1 See Event Messages for Routers for detailed information about the SNMP trap format 2 6 117362 A Rev A Thresholds SNMP RMON BootP DHCP and RARP Concepts SNMP uses a management information base MIB to manage the router The MIB includes an extensive collection of statistics MIB variables that track the router s performance and provide early warnings of abnormal operating conditions With the Site Manager threshold feature you can configure the agent to automatically notify you when specific statistics or instances of the variable reach certain levels You can set a threshold for any integer counter gauge or time tick variable in the MIB Using the threshold parameters you e Select the polling interval which specifies how often the agent checks the statistic to see if its value has reached the threshold e Set three threshold values high medium and low e Specify the threshold action as Lessthan or Greaterthan For information about setting thresholds see Configuring Thresholds on page 3 26 When the statistic reaches the threshold the agent generates an event You specify the
22. IP address you must specify the IP address of the server that should receive the BOOTREQUEST or DHCP packet from the relay agent 5 14 117362 A Rev A Customizing BootP To specify the target server IP address complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens 5 Click on Pref Serv The BOOTP Relay Agent Preferred Server Table opens 6 Click on Add The BOOTP Preferred Server Configuration window opens 7 Set the Target Server IP Address parameter Click on Help or see the parameter description on page A 25 8 Click on OK 9 Click on Done You return to the Configuration Manager window Specifying the Target Server s Host Name If you want to keep track of the names of BootP and DHCP servers specify the target server s host name The host name cannot exceed 63 ASCII characters including embedded spaces To specify the target server s host name complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP
23. IP menu opens 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens This window lists all the IP interfaces that you have configured for BOOTP services on the router 5 Setthe Timeout Secs parameter Click on Help or see the parameter description on page A 21 6 Click on Apply 7 Click on Done You return to the Configuration Manager window Specifying the Relay Mode for Packet Forwarding BootP and DHCP use the BootP relay agent to forward packets You can allow the BootP relay agent to forward BootP DHCP packets or both by specifying the Pass Through Mode parameter The default setting is BootP which allows the interface to transmit only BootP packets Be sure to change the setting if you want to transmit DHCP packets To set the relay mode on a BootP interface complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens continued 5 4 117362 A Rev A Customizing BootP Site Manager Procedure continued You do this System responds 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens This window lists all the IP interfa
24. Parameters window opens For the ARN only you can enable a DCM on both an Ethernet base module and an If you chose Create Expansion Module Ethernet expansion module To create the DCM for an ARN the Edit Expansion DCMMW on an ARN expansion module Module DCM Parameters window opens with an installed DCM choose Create the parameters are identical to those in Expansion Module DCM the Edit Base Module DCM Parameters window 4 Click on OK to accept the default You return to the Configuration Manager configuration parameters window Once the Ethernet DCM is enabled and collecting statistics you can use Optivity LAN software or a third party RMON network management application to view and analyze statistics Customizing the Ethernet DCM For information about customizing the DCMMW configuration parameters refer to Modifying the DCM Configuration in Chapter 4 1 8 117362 A Rev A Starting SNMP RMON BootP DHCP and RARP Services Starting BootP Services You must use Site Manager to start BootP The BCC is not supported Before you can run BootP services you must enable IP on the router You can however enable IP and BootP on the router simultaneously If you want to add BootP to a circuit on which you have already configured IP refer to Configuring and Managing Routers with Site Manager for more information about adding a protocol When you enable BootP you are required to configure only a few param
25. Rev A 3 31 Configuring SNMP RMON BootP DHCP and RARP Services To specify threshold units complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose Global Protocols The Global Protocols menu opens 3 Choose Thresholds The Thresholds menu opens 4 Choose Thresholds The Thresholds Interface Lists window opens 5 Setthe Threshold Units parameter Click on Help or see the parameter description on page A 13 6 Click on Done You return to the Configuration Manager window Determining When to Record Threshold Events You can determine when the agent generates a threshold event by setting the Threshold Action parameter By default the agent generates a threshold event when the value of the variable you specify is greater than the threshold you specify If you want the agent to generate threshold events when the value of the variable is less than the threshold you specify set the Threshold Action parameter to Lessthan 3 32 117362 A Rev A Customizing SNMP To determine when to record threshold events complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose Global Protocols The Global Protocols menu o
26. Services Specifying a Lock Address The default lock address is 0 0 0 0 To specify a lock address navigate to the SNMP prompt and enter lock address address address is an IP address in dotted decimal notation Note There is no Site Manager command for specifying a lock address Specifying a Lock Timeout Value If the SNMP locking mechanism is enabled you can customize the lock timeout period The lock timeout period is the maximum number of minutes the SNMP agent allows an idle network management station to hold a lock on it During this time the SNMP agent locks out SNMP set commands from other network management stations The lock timer is reset each time the locking manager issues an SNMP set command By default the SNMP agent allows an idle network management station to hold a lock on it for 2 minutes To change the default lock timeout period specify a value from 1 to 60 minutes Using the BCC To specify the number of seconds navigate to the SNMP prompt and enter lock timeout integer integer is the number of seconds 3 6 117362 A Rev A Customizing SNMP Using Site Manager To specify a lock timeout value complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose SNMP The SNMP menu opens 4 Choose Global
27. The Edit SNMP Global Parameters window opens 5 Setthe Lock Time Out parameter Click on Help or see the parameter description on page A 4 6 Click on OK You return to the Configuration Manager window Enabling and Disabling Authentication Failure Traps The router generates an authentication failure trap when it receives an SNMP message from an SNMP manager falsely claiming to be in a particular community or specifying an unknown community When you enable the authentications failure trap feature on the router you must configure an SNMP community manager to receive the trap See Configuring SNMP Community Managers on page 3 13 You can prohibit the router from generating authentication failure traps by disabling the authentication failure trap feature 117362 A Rev A 3 7 Configuring SNMP RMON BootP DHCP and RARP Services Using the BCC By default SNMP sends an authentication failure trap for sets from a false manager or community To disable authentication traps navigate to the SNMP prompt and enter authentication traps disabled For example the following command line causes SNMP to send authentication failure traps from a false manager or community snmp authentication traps disabled snmp To reenable authentication failure traps navigate to the SNMP prompt and enter authentication traps enabled For example the following command line prohibits SNMP from generating authent
28. The IP menu opens 3 Choose BOOTP The BOOTP menu opens continued 117362 A Rev A 5 15 Configuring SNMP RMON BootP DHCP and RARP Services Site Manager Procedure continued You do this System responds 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens 5 Click on Pref Serv The BOOTP Relay Agent Preferred Server Table opens 6 Set the Target Name parameter Click on Help or see the parameter description on page A 26 7 Click on Apply 8 Click on Done You return to the Configuration Manager window After you specify the IP address and host name of the target server the BootP Relay Agent Preferred Server Table window shows the address pair you added and default values for the Enable Disable and Pass Through Mode parameters Disabling the Forwarding Route By default BootP and DHCP forwarding is enabled for the route that you configured You can disable BootP or DHCP forwarding on this route if you choose by setting the Disable Enable parameter to Disable To disable the forwarding router complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Rela
29. a selected set of management stations By using more than one community the agent can provide different levels of MIB access to different management stations All SNMP message exchanges consist of a community name and a data field which contains the SNMP operation and its associated operands You can configure the SNMP agent to receive requests and send responses only from managers that are members of a known community If the agent knows the community name in the SNMP message and knows that the manager generating the request is a member of that community it considers the message to be authentic and gives it the access allowed for members of that community Thus the SNMP community prevents unauthorized managers from viewing or changing the configuration of a router SNMP Implementation Notes This section contains information about features specific to the Bay Networks implementation of SNMP Internet Protocol SNMP uses the User Datagram Protocol UDP to transport its messages You must enable the Internet Protocol IP to use UDP and SNMP Events and Traps An event is a change in the operating status of a router The router stores the event as a single entry in a memory resident log 2 4 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts An event log message provides a brief description of an event along with the event code associated with that event A trap is an event that the router transmits to the network
30. enabled which causes the router to create the RMON matrix control table each time you boot the Ethernet DCM Some RMON network management applications expect the Ethernet DCM to set up a matrix configuration Others enable and disable their own configurations during normal operations You can disable default creation of the RMON matrix control table at boot time by setting the RMON Default Matrix parameter to Disable To re create the RMON matrix control table at the next and every subsequent reboot set the RMON Default Matrix parameter to Enable Note that the DCM allows only one instance of the matrix control table To disable the RMON default matrix table complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Platform menu opens choose Platform 2 Choose DCM 11 0 and later The DCM 11 0 and Later menu opens 3 Choose Global The Global menu opens 4 Choose Base Module DCM or The Edit Base Module DCM Parameters Expansion Module DCM window opens or the Edit Expansion Module DCM Parameters window opens continued 117362 A Rev A 4 9 Configuring SNMP RMON BootP DHCP and RARP Services Site Manager Procedure continued You do this System responds 5 Set the RMON Default Matrix parameter Click on Help or see the parameter description on page A 19 6 Click on OK You return to the Confi
31. event groups is based on the memory resources allocated on the router base module rather than the Ethernet DCM memory resources The RMON alarm and event groups are maintained by the router base module All other RMON groups are supported on the Ethernet DCM Each alarm entry requires 232 bytes Each event entry requires 542 bytes The log table can accommodate up to 65 535 entries Each entry in the log table requires 267 bytes You cannot delete log entry rows Therefore as events are triggered and the event type specifies logging the log table increases in size Although there is no way to delete a specific log entry all log entries in the log table corresponding to a single event entry are deleted when the event entry is deleted 117362 A Rev A 2 25 Configuring SNMP RMON BootP DHCP and RARP Services BootP Relay Agent Overview BootP is built on the client server model and allows a diskless client to boot remotely from a server on the same network or on a different physical network The client broadcasts a request to boot from a remote server When a suitable server receives the BOOTREQUEST packet it responds to the client by issuing a BOOTREPLY packet which includes the client s IP address the address of the gateway and the address of a server The server then transmits the boot file to the client via a transfer protocol such as Trivial File Transfer Protocol TFTP Figure 2 4 illustrates how BootP works when the clie
32. gt DCM 11 0 and later gt Global gt Base Module DCM Local Local Shared Memory Specifies whether to use configuration information in the DCM flash memory or in the DCM shared memory space DRAM or the configuration information saved on the DCM s flash memory SIMM Select Local to use the default configuration information in the DCM local flash memory Select Shared Memory to use the configuration information from the BayStack router s flash memory stored in DCM DRAM 1 3 6 1 4 1 18 3 3 2 16 2 1 10 117362 A Rev A Configuring SNMP RMON BootP DHCP and RARP Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Save Configuration Info Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM Save Save No Save Specifies whether or not to save the configuration information in DRAM to the DCM flash memory Select Save to save the configuration information in DRAM to the DCM flash memory writing over the existing configuration file Select No Save to avoid overwriting the DCM configuration file 1 3 6 1 4 1 18 3 3 2 16 2 1 11 RMON Max Host Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM 500 100 to 8128 Relates to the RMON host group Indicates the maximum number of host addresses to be co
33. gt IP gt BOOTP gt Relay Agent Interface Table 4 1 to 16 hops Specifies the maximum number of hops from the client to the server A hop is the logical distance between two devices If the value in the hops field of a BOOTREQUEST packet is greater than the number you specify for this parameter the router drops the packet Accept the default of 4 hops or specify a number from 1 to 16 1 3 6 1 4 1 18 3 5 3 8 3 1 1 5 A 20 117362 A Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID SNMP DCM BootP DHCP and RARP Parameter Descriptions Timeout Secs Configuration Manager gt Protocols gt IP gt BOOTP gt Relay Agent Interface Table 0 0 to 65535 seconds Specifies the minimum number of seconds that the router waits before forwarding a BOOTREQUEST packet If the value in the seconds field of a BOOTREQUEST packet is less than the value you specify for this parameter the router drops the packet Accept the default 0 or specify a number from 1 to 65535 1 3 6 1 4 1 18 3 5 3 8 3 1 1 6 Pass Through Mode Configuration Manager gt Protocols gt IP gt BOOTP gt Relay Agent Interface Table BOOTP BOOTP DHCP BOOTP and DHCP Specifies whether the interface relays BootP DHCP or both BootP and DHCP requests Select BOOTP to relay BootP requests select DHCP to relay DHCP requests
34. gt IP gt SNMP gt Global Enable Enable Disable Specifies whether the router attempts to generate an authentication failure trap when it receives an SNMP message from an SNMP manager falsely claiming to be in a particular community or specifying an unknown community Select Enable to enable the router to generate authentication failure traps If you select Enable you must configure an SNMP manager to receive the trap You configure a trap in the Trap Configuration window Select Disable to prohibit the router from generating authentication failure traps 1 3 6 1 4 1 18 3 5 3 5 1 3 5 A 4 117362 A Rev A SNMP DCM BootP DHCP and RARP Parameter Descriptions SNMP Community Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Use the following guidelines to configure SNMP community parameters in the SNMP Community window Community Name Configuration Manager gt Protocols gt IP gt SNMP gt Communities gt Community gt Add Community Edit Community None Any string of printable ASCII characters up to 63 characters in length including embedded spaces Specifies the name of the SNMP community Enter the SNMP community name 1 3 6 1 4 1 18 3 5 3 5 2 1 3 Access Configuration Manager gt Protocols gt IP gt SNMP gt Communities gt Community gt Add Community Edit Co
35. information about changing the default settings see Appendix A 117362 A Rev A 14 Configuring SNMP RMON BootP DHCP and RARP Services The following table describes the sequence of tasks required to complete basic configuration Topic Page Starting Configuration Tools 1 2 Configuring IP for Global Protocols 1 3 Starting SNMP Services 1 5 Starting RMON 1 6 Starting BootP Services 1 9 Starting DHCP Services 1 10 Starting RARP Services 1 12 Starting Configuration Tools Before configuring SNMP RMON BootP DHCP and RARP services refer to the following user guides for instructions on how to start and use the Bay Networks configuration tool of your choice Configuration Tool User Guide Bay Command Console BCC Using the Bay Command Console AN BN Routers Site Manager Configuring and Managing Routers with Site Manager Quick2Config Configuring Your Router Using the Quick2Config Tool NETarchitect Getting Started with Optivity Network Management System 8 0 Configuring and Maintaining Networks with the NETarchitect System These guides also describe generically how to create or modify a device configuration 1 2 117362 A Rev A Starting SNMP RMON BootP DHCP and RARP Services Configuring IP for Global Protocols SNMP BootP DHCP and RARP services all use the Internet Protocol IP for message tran
36. management station SNMP allows you to configure which event log messages the agent sends to the network management station as traps You select these traps based on slot protocol entity and severity level You can also specify up to 50 exceptions which are traps that the agent always sends or never sends regardless of slot and regardless of how you configure the trap parameters See Configuring Traps on the Router on page 3 19 for information about how to specify which traps the agent sends Protocol Entities Events are always associated with a particular protocol entity An entity is the software that generates a message Entities include Bay Networks software dedicated to the operation of a software service such as Trivial File Transfer Protocol TFTP and IP and the GAME operating system Both events and entities are assigned entity codes Together this pair uniquely identifies a Bay Networks router platform event See Event Messages for Routers for a complete list of entities both their abbreviations and full names and associated entity codes Severity Levels Event and trap messages are always associated with one of five severity levels Table 2 1 describes the severity levels and gives the code that corresponds to each one This guide does not cover Debug messages because they are for Bay Networks internal use only Table 2 1 Severity Levels Severity Description Code Information Indicates routine eve
37. the Software to reconstruct lost or altered files data or programs 4 Limitation of liability IN NO EVENT WILL BAY NETWORKS OR ITS LICENSORS BE LIABLE FOR ANY COST OF SUBSTITUTE PROCUREMENT SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES RESULTING FROM INACCURATE OR LOST DATA OR LOSS OF USE OR PROFITS ARISING OUT OF OR IN CONNECTION WITH THE PERFORMANCE OF THE SOFTWARE EVEN IF BAY NETWORKS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES IN NO EVENT SHALL THE LIABILITY OF BAY NETWORKS RELATING TO THE SOFTWARE OR THIS AGREEMENT EXCEED THE PRICE PAID TO BAY NETWORKS FOR THE SOFTWARE LICENSE 5 Government Licensees This provision applies to all Software and documentation acquired directly or indirectly by or on behalf of the United States Government The Software and documentation are commercial products licensed on the open market at market prices and were developed entirely at private expense and without the use of any U S Government funds The license to the U S Government is granted only with restricted rights and use duplication or disclosure by the U S Government is subject to the restrictions set forth in subparagraph c 1 of the Commercial Computer Software Restricted Rights clause of FAR 52 227 19 and the limitations set out in this license for civilian agencies and subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause of DFARS 252 227 7013 for agencies of the Departmen
38. the Threshold Max Successive Alarms parameter Click on Help or see the parameter description on page A 14 6 Click on Done You return to the Configuration Manager window Specifying Polling Intervals for Held Variables You can specify an integer value to determine the number of exception free polling intervals through which a variable in a held state must pass before the variable is no longer considered held The lower the number you specify the more likely the agent is to generate repetitive event messages for a variable that is intermittently exceeding thresholds To specify the number of exception free polling intervals through which a variable in a held state must pass before the variable is no longer considered held complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose Global Protocols The Global Protocols menu opens 3 Choose Thresholds The Thresholds menu opens continued 3 34 117362 A Rev A Customizing SNMP Site Manager Procedure continued You do this System responds 4 Choose Thresholds The Thresholds Interface Lists window opens 5 Set the Threshold HoldDown Intervals parameter Click on Help or see the parameter description on page A 14 6 Click on Done You return to the Configuration Manager window
39. the periodic statistical sampling of data from networks and specifies control parameters such as the frequency of data sampling in the historyControlTable 117362 A Rev A 2 13 Configuring SNMP RMON BootP DHCP and RARP Services The history function records periodic statistical samples from Ethernet networks for example interval start time and number of packets This function places the statistical samples in the etherHistoryTable Host Group The host group identifies hosts on the network by recording the source and destination MAC addresses in good packets and places the information in the hostTable This group also records the time it discovered a host on the network in the hostTimeTable The hostControlTable specifies control parameters such as which monitoring operations the Ethernet DCM performs and contains some information about the monitoring process HostTopN Group The HostTopN group ranks hosts according to a statistic type For example you might want to rank the hosts by the number of errors they generate Control parameters for this group appear in the hostTopNControlTable and data this group generates appears in the hostTopNTable To use the HostTopN group you must set up the host group Matrix Group The matrix group stores statistics for an interchange between hosts at different addresses This group s control parameters such as number of hosts appear in the matrixControlTable When the matrix group
40. to forward the BOOTREQUEST packet to a specific server In this case the router will unicast the BOOTREQUEST packet to the server through normal IP services Servers on other networks receive the BOOTREQUEST packet and respond with a BOOTREPLY packet Those servers transmit the BOOTREPLY packets through normal IP services to the address of the first interface that received the BOOTREQUEST packet That address appears in the gateway IP address field in the BOOTREQUEST packet When the router that first received the BOOTREQUEST packet receives the BOOTREPLY packet it examines the gateway IP address field to check that the value in this field is the same as the IP destination address that the server used for the packet If the addresses differ the router discards the BOOTREPLY packet If the router accepts the packet it examines the flags field and forwards the packet to the client as follows e If the flags field contains the value 1 the client does not know its own IP address The router broadcasts the BOOTREPLY packets to the IP broadcast address 255 255 255 255 117362 A Rev A 2 29 Configuring SNMP RMON BootP DHCP and RARP Services e If the flags field contains the value 0 the client knows its own IP address which appears in the client IP address field of the BOOTREPLY packet The router sends the BOOTREPLY packet to that IP address and the link layer address that appears in the client hardware address field DH
41. to its clients on the local area network When you configure a router to use RARP services it acts as a RARP server A RARP server supplies clients on the same physical or logical LAN with IP addresses Figure 2 10 RARP request What is my IP address gt lt RARP response 192 32 2 23 Router RARP server SSS Server SNM0007A Figure 2 10 RARP Server Supplying an IP Address 2 36 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts To use RARP services you must set up a MAC address to IP address mapping table This table lists the MAC addresses of clients and the corresponding IP addresses that the RARP server assigns to those clients When a client needs to acquire an IP address the following interchange takes place 1 The client broadcasts a RARP request specifying its MAC address 2 Upon receiving a RARP request the router refers to its MAC address to IP address mapping table then sends the client a response packet containing the corresponding IP address 3 The client examines the response packet to learn its IP address You can configure RARP support on Ethernet and token ring interfaces and on the Fiber Distributed Data Interface FDDI 117362 A Rev A 2 37 Chapter 3 Customizing SNMP Topic Page Summary of SNMP Configura
42. to the Configuration Manager click on OK window SNMP is now fully operational Customizing SNMP Services The instructions in this chapter show you how to start SNMP using the default values and settings For information about modifying SNMP default settings refer to Chapter 3 Starting RMON You must use Site Manager to start RMON The BCC is not supported Before you can use RMON you must 1 Install an Ethernet DCM module in each router from which you want to collect RMON statistics The Ethernet DCM physically connects to the BayStack router base modules and to the ARN Ethernet expansion modules See Installing an N11 Data Collection Module DCM in a BayStack AN or Installing an N11 Data Collection Module DCM in an 6 Port ANH for detailed instructions on physically installing the Ethernet DCM hardware in a BayStack routers 2 Install the latest Ethernet DCM software image in the Ethernet DCM s flash memory to ensure that the Ethernet DCM runs properly on your router 1 6 117362 A Rev A Starting SNMP RMON BootP DHCP and RARP Services To run RMON on a Version 11 0 or later Bay Networks router the router must be running a Version 1 4 or later DCM image If the router has an earlier version of DCM the RMON Summary application returns an error message telling you that the router does not support RMON For information about upgrading your router and the DCM image refer to Upgrading Routers from Version
43. to use an unnumbered interface to send BOOTREQUEST or DHCP packets to servers you must set up a preferred server from the BOOTP Relay Agent Interface Table window 1 3 6 1 4 1 18 3 5 3 8 3 2 1 4 A 22 117362 A Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID SNMP DCM BootP DHCP and RARP Parameter Descriptions Enable Disable Configuration Manager gt Protocols gt IP gt BOOTP gt Relay Agent Interface Table gt Forward I F gt Add Enable Enable Disable Specifies whether this forwarding route is active Select Enable to allow BootP or DHCP forwarding through this route select Disable to prevent BootP or DHCP forwarding through this route 1 3 6 1 4 1 18 3 5 3 8 3 2 1 2 Pass Through Mode Configuration Manager gt Protocols gt IP gt BOOTP gt Relay Agent Interface Table gt Forward I F gt Add BOOTP BOOTP DHCP BOOTP and DHCP Specifies whether the interface relays BootP DHCP or both BootP and DHCP requests Select BOOTP to relay BootP requests select DHCP to relay DHCP requests select BOOTP and DHCP to relay both kinds of requests 1 3 6 1 4 1 18 3 5 3 8 3 2 1 5 117362 A Rev A A 23 Configuring SNMP RMON BootP DHCP and RARP Services BootP Client Interface Address Parameters Parameter Path Default Options Function Instructions
44. window opens displaying a list of all MIB objects the agent supports Select the object to which you want to apply a threshold The object appears in the Object field Enter the instance identifier in the Instance field continued 3 28 117362 A Rev A Customizing SNMP Site Manager Procedure continued You do this System responds 8 Click on Save The Threshold Interface Lists window opens again 9 Click on Apply 10 Repeat steps 5 through 9 to add other thresholds 11 Click on Done when you have finished You return to the Configuration Manager adding thresholds window Enabling and Disabling Thresholds for a Variable You can decide whether to turn the threshold for a specific variable on or off by specifying the Threshold Enable parameter To tell the agent to apply the threshold to a variable specify Enable To tell the agent to ignore the threshold for a variable specify Disable To enable or disable thresholds for a variable complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose Global Protocols The Global Protocols menu opens 3 Choose Thresholds The Thresholds menu opens 4 Choose Thresholds The Thresholds Interface Lists window opens 5 Set the Threshold Enable parameter Click on He
45. you enter for a parameter is valid Entering an invalid value can corrupt your configuration e Enable disable and reboot the Ethernet DCM Refer to Using Technician Interface Scripts for information about using the enable disable dcmmw scripts Caution Avoid running scripts that continually issue Technician Interface commands while you are running another RMON network management application This combination can cause the SNMP agent to fill the system buffers with RMON data causing a system restart Viewing and Analyzing Statistics Using Optivity Once you have enabled the DCM on a BayStack router and the DCM is collecting Ethernet statistics you can use Optivity Analysis and Optivity LAN software to view analyze and monitor network statistics Using Optivity Analysis with RMON Optivity Analysis is a set of graphical network management applications based on RMON These Optivity applications offer powerful RMON based tools that work together to keep your network working optimally 4 12 117362 A Rev A Customizing a DCM for RMON Each RMON tool is a complete application After the tool requests and receives information from the network management station it processes the information and displays a graphical summary of network traffic Each tool is configurable so you can obtain exactly the type of information you need for a variety of purposes In Optivity Analysis RMON tools represent an intelligent im
46. 0 DHCP parameters 6 1 to 6 3 RARP 1 12 RARP parameters 7 1 to 7 5 SNMP global parameters 3 3 to 3 8 D data collection module middleware DCMMW 2 11 Index 1 DCM boot image 4 3 customizing parameters 4 2 to 4 10 defaults for BootP and DHCP parameters B 4 to B 5 for RARP parameters B 5 for SNMP parameters B 1 DHCP customizing 1 10 customizing parameters 6 1 to 6 3 deleting from an IP interface 6 3 deleting globally 6 4 enabling on an interface 1 10 overview of protocol 2 30 packet 2 33 to 2 35 parameters B 4 to B 5 servers 2 30 starting 1 9 Dynamic Host Configuration Protocol See DHCP E editing DHCP parameters 6 1 to 6 4 RARP parameters 7 1 to 7 5 Ethernet statistics group 2 13 format 2 8 protocol entities 2 5 severity levels 2 5 exceptions deleting 3 25 F filter group 2 14 2 24 H history group 2 13 2 21 host group 2 14 2 22 HostTopN group 2 14 2 23 Index 2 implementation notes for SNMP 2 4 to 2 9 interoperability issues for RMON 2 19 to 2 25 IP address acquiring through DHCP services 2 30 to 2 36 acquiring through RARP services 2 36 customizing 1 5 starting 1 2 IP Address parameter IP configuration 1 3 managers for SNMP deleting 3 17 matrix group 2 14 2 23 memory use for configuring thresholds 2 9 for RMON 2 20 to 2 25 N name 3 12 O Optivity software RMON 2 19 P packet BootP 2 26 to 2 29 DHCP 2 33 to 2
47. 11 Creating a BootP Client Interface Table nite TOUR T TUR Scabies 5 11 epectiving ie Client IP Address ces eg Deko t aec e iate cedat 5 11 Speciying Tie DEGI NUMBOF 1 iucuccecusti senden Ee c tU uad ob iiaa B ops 5 12 Bpsciving Servers for BOOP SEIVIBDE acsciiisesciuctickcennt eese sei eec cusbpee du xt CEcUe a 5 13 Configuring BootP Preferred Servers occ cdeceisress o n a Rel esc E Re a ions 5 13 Specifying the Relay Agent IP Address dingai PE E AT taia 5 14 Specifying the Target Server IP Address ccecccccsseceseceeeeeeeeteneeeteaeeeteaeeeeaes 5 14 Specifying the Target Server s Host Name sese 5 15 Disabling the Forwarding Route TORT Seton 5 16 Filtering BoolP and DEHOP PSORGeIS ursinus 5 17 Deleting the BootP Relay Agent from an IP Interface sssssseeess 5 18 Deleting BooiF GUNA asscctinetianecedeeeedines adie diaceen ethene areata raed hee Reet caedehe 5 18 117362 A Rev A Chapter 6 Customizing DHCP CUSTOMIZING DHCP Paramelelg Me 6 1 Specifying Interfaces to Receive and Relay DHCP Packets sccecceesteeeeeeeees 6 2 Specifying Servers for DHCP Services E RT ee m 6 3 Deleting DHOP toman IP WES accu e oro dp nb eed d OR Pi bod dd 6 3 Deleting DHCP ANY RR s 6 4 Chapter 7 Customizing RARP usta RARP PAGO Re ax anise iini danara aaRS FRASAN IR AAAS S Ea 7 1 Disablin
48. 35 parameters BootP parameters A 20 RARP parameters A 27 SNMP parameters A 3 publications ordering xx 117362 A Rev A RARP customizing 1 12 defining the mapping table for 7 2 deleting globally 7 5 disabling globally 7 5 disabling interfaces 7 2 enabling on an IP interface 1 11 overview 2 36 reenabling interfaces 7 2 Request for Comments 1757 2 10 2 13 Reverse Address Resolution Protocol See RARP RMON agent 2 10 architecture 2 11 BayStack AN and ANH base module 2 11 DCM 2 11 DCMMW 2 11 configuring 2 9 control parameters 2 13 control tables 2 13 data tables 2 13 groups 2 10 to 2 15 interoperability issues 2 19 to 2 25 memory use 2 20 to 2 25 overview 2 9 starting 1 6 using Optivity Analysis 2 9 using Optivity LAN 2 9 Simple Network Management Protocol See SNMP SNMP adding a community 3 9 adding a manager 3 13 adding a threshold 3 27 agents 2 1 applications 2 1 community 2 4 community managers 3 12 117362 A Rev A configuring a manager to receive traps 3 14 configuring trap exceptions 3 23 customizing global parameters 3 3 to 3 8 deleting a community 3 12 deleting a manager 3 17 deleting trap exceptions 3 25 determining when to record threshold events 3 31 disabling a trap entity 3 22 disabling and reenabling 3 3 disabling thresholds 3 26 enabling authentication failure traps 3 7 enabling SNMP lock mechanism 3 4 enabling thres
49. 5 7 Configuring an AN to Use EZ Install over a Frame Relay PVC bet Specifying Servers for BootP Services 5 13 Deleting the BootP Relay Agent from an IP Interface 5 18 Deleting BootP Globally 5 18 This chapter describes how to customize BootP services It assumes you have configured an IP interface and enabled BootP on this interface using the default parameters as described in Chapter 1 and that you understand the BootP concepts in Chapter 2 You can enable BootP services most easily by accepting all the default configuration parameter values However you may want to change these values depending on your network requirements This chapter describes choices you can make to use BootP most effectively on your network 117362 A Rev A 5 1 Configuring SNMP RMON BootP DHCP and RARP Services Customizing BootP Relay Agent Parameters After you have configured all the IP interfaces for BootP services you can configure BootP relay agent parameters for all of these IP interfaces The BootP relay agent is responsible for transmitting BOOTREQUEST packets to servers on the network and for transmitting BOOTREPLY packets to clients Disabling and Reenabling BootP When you enable IP on an interface BootP is automatically enabled on that interface and default values are in effect for all BootP parameters refer to Appendix B for parameter defaults To disable or reenable BootP complete the tasks in the following table
50. Before you begin verify that you have configured IP on an interface as described in Configuring IP for Global Protocols on page 1 3 Using the BCC To configure SNMP on the router with default settings begin in configuration mode at the box level prompt 1 Configure SNMP box snmp 2 Display SNMP default settings snmp info on box state enabled lock enabled lock address 0 0 0 0 lock timeout 2 authentication traps enabled type of service reliability scope delimiter 0x40 Using Site Manager You can easily start SNMP services using default values for all parameters If you decide to change some or all of the default values refer to the instructions in Chapter 3 Customizing SNMP For a list of SNMP parameters see Appendix B Before you can start SNMP services you must verify that you have configured IP on an interface as described in Configuring IP for Global Protocols on page 1 2 117362 A Rev A 1 5 Configuring SNMP RMON BootP DHCP and RARP Services To start SNMP perform the tasks in the following table Site Manager Procedure You do this System responds 1 From the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP Global Protocols menu opens 3 Choose SNMP The SNMP menu opens 4 Choose Global The Edit SNMP Global Protocols Parameter window opens 5 Accept all default parameter values and You return
51. CC To specify a trap exception based on protocol entity and entity code enter the following command at the SNMP prompt trap event entity entity_number event entity_code entity_number is the value assigned to the entity issuing the message entity_code is a numerical value assigned to the message For example the following command causes the SNMP agent to send a network management station a trap for IP protocol entity 2 generating messages for interfaces that transition to the down state snmp trap event entity 2 event 3 trap event 2 3 info on snmp state enabled entity 2 event 3 snmp Using Site Manager To configure a trap exception complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu open 3 Choose SNMP The SNMP menu opens 4 Choose Trap Configuration The Trap Configuration menu opens 5 Choose Exceptions The Trap Exceptions List window opens 6 Click on Add The Add Trap window opens continued 3 24 117362 A Rev A Customizing SNMP Site Manager Procedure continued You do this System responds 7 Set the following parameters Entity Code Event Code Always Never Trap Click on Help or see the parameter descriptions beginning on page A 7 8 Click on OK You return to the Configurati
52. CM boot image remember to set the Boot Option parameter back to Local To specify the boot option complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Platform menu opens choose Platform 2 Choose DCM 11 0 and later The DCM 11 0 and Later menu opens 3 Choose Global The Global menu opens 4 Choose Base Module DCM or The Edit Base Module DCM window or Expansion Module DCM the Edit Expansion Module DCM Parameters window opens 6 Set the Boot Option parameter Click on Help or see the parameter description on page A 16 7 Click on OK You return to the Configuration Manager window 4 4 117362 A Rev A Customizing a DCM for RMON Saving the Boot Image File By default the DCM saves the boot image file to its local flash memory writing over the existing saved image If you do not want to save the DCM boot image file the image remains in DRAM until the next time the DCM boots set the Image Save Mode parameter to No Save To save the boot image file complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Platform menu opens choose Platform 2 Choose DCM 11 0 and later The DCM 11 0 and Later menu opens 3 Choose Global The Global menu opens 4 Choose Base Module DCM or The Edit Base M
53. CP Overview DHCP is an extension of BootP and is also built on the client server model DHCP provides a method for dynamically assigning IP addresses and configuration parameters to other IP hosts or clients in an IP network DHCP is specifically designed for servers in large network environments and complex TCP IP software configurations DHCP allows a host to automatically allocate reusable IP addresses and additional configuration parameters for client operation and allows the client server host to configure parameters not directly related to the IP protocol This feature allows the host to exchange packets with any other host on the network DHCP enables clients to obtain an IP address for a fixed length of time a lease period from remote servers DHCP servers Groups of hosts that do not need permanent IP addresses can lease an address from a limited pool of addresses The lease period can range from 1 minute to 99 years When the lease period expires the server can assign the IP address to another client on the network DHCP also enables clients to acquire the IP configuration parameters they need to communicate on a network The DHCP packet format is based on a BootP packet As a result DHCP uses the BootP relay agent to forward DHCP packets This scheme provides interoperability between the existing BootP clients and DHCP servers The BootP relay agent uses the same criteria and methods for forwarding both DHCP and BootP packets See
54. EE aaa aa aa A E E 2 5 Saye nk GEE anann AA E E TA 2 5 SNMP Trap Format asea enikeni akae PR in 2 6 Hi c 2 7 CESON EANG iiie Lanta pent ce bilatis eut S ue 2 7 Event Message Format EEE EE eme ERIS l sion nb Odi cae PER TEM 2 8 Sie o0 Gh Pese usiosogeiiipoasi anb Ebo eared dab eoa Ca dogs 2 9 Memnon Consta OUI si Dacicus uo nus ac on duke Ono Dai p cator dat bi tbt 2 9 gi uto sp s qM 2 9 Fer PIU VUDUER aitri sri uerb np rei et HU eb d ena gi axo ca Oen p Rude 2 10 mule e NE E o o TT T 2 11 zie xfi EI A E E D tes 2 12 RMON MIB Group Controls and FUNCIONS iuis idaantccn kenn adc tiec 2 13 Statistics Group Mises Esp EcHUU dit Me UiS poenis cbids PHRASE eaters eer ree 2 13 iz gt MUTET LI I et reer 2 13 Pee Te Ee RR tis trae T T TT 2 14 FAS ETOP Eti e 2 14 Matris GOU M M 2 14 Filter CIFOBD seassa rebas ieee bcp Miu m Cie 2 14 CSU IE mr E 2 15 PU ern PAM DT 2 15 Evert GOUD uoces teet TEE TET TE 2 16 vi 117362 A Rev A RMON Interoperability BSUSS so ce e topic pod apap ea ao redet c ara 2 17 Hardware and Software Compatibility iussis cauti break dead aaa etae 2 18 RMON ApPICANGNE acies ri Pei eie bsc etate Rar IA rin cttd edie 2 19 pO Wis outs gal Ul gpm T S 2 20 Interoperability Issues and Memory Use for RMON Groups sese 2 20 Gases CRISE sireeni a i rA AEn 2 21 Ae AEL ln um pco 2 21 Host Grou
55. MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Use the following guidelines to configure BootP and DHCP parameters in the BOOTP Client Interface window IP Address Configuration Manager gt Protocols gt IP gt BOOTP gt Relay Agent Interface Table gt Client I F gt Add None Any valid IP address Specifies the IP address of the remote AN that will boot using EZ Install over a frame relay group access PVC connection to the router Enter the IP address of the remote AN 1 3 6 1 4 1 18 3 5 3 8 1 1 1 3 DLCI Number Configuration Manager gt Protocols gt IP gt BOOTP gt Relay Agent Interface Table gt Client I F gt Add None 16 to 1007 Specifies the frame relay PVC identification number whose destination is the remote AN that will boot using EZ Install The frame relay network uses the DLCI number to direct data flow Enter the DLCI number in decimal format for the group access PVC to the remote AN Use the DLCI number assigned by your frame relay service provider 1 3 6 1 4 1 18 3 5 3 8 1 1 1 2 A 24 117362 A Rev A SNMP DCM BootP DHCP and RARP Parameter Descriptions BootP Preferred Server Configuration Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Use the following guidelines to configure BootP and DHCP pr
56. N Default Matrix Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM Enable Enable Disable Relates to the RMON matrix group Specifies whether or not to create the RMON matrix control table at every boot Some RMON network management applications expect the DCM to set up a matrix configuration Others enable and disable their own configurations during normal operations Select Enable to create the RMON matrix control table at the next and every subsequent reboot Select Disable to disable default creation of the RMON matrix control table at boot time 1 3 6 1 4 1 18 3 3 2 16 2 1 14 117362 A Rev A Configuring SNMP RMON BootP DHCP and RARP Services BootP and DHCP Parameters Use the following guidelines to configure BootP and DHCP parameters in the BOOTP Relay Agent Interface Table window BootP Relay Agent Interface Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Enable Disable Configuration Manager gt Protocols gt IP gt BOOTP gt Relay Agent Interface Table Enable Enable Disable Specifies whether BootP is active on the network interface Select Enable to enable BootP on the network interface select Disable to disable BootP on the network interface 1 3 6 1 4 1 18 3 5 3 8 3 1 1 2 Hops Configuration Manager gt Protocols
57. ONS OF THE SOFTWARE ARE PROVIDED AS IS AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE In addition the program and information contained herein are licensed only pursuant to a license agreement that contains restrictions on use and disclosure that may incorporate by reference certain limitations and notices imposed by third parties 117362 A Rev A Bay Networks Inc Software License Agreement NOTICE Please carefully read this license agreement before copying or using the accompanying software or installing the hardware unit with pre enabled software each of which is referred to as Software in this Agreement BY COPYING OR USING THE SOFTWARE YOU ACCEPT ALL OF THE TERMS AND CONDITIONS OF THIS LICENSE AGREEMENT THE TERMS EXPRESSED IN THIS AGREEMENT ARE THE ONLY TERMS UNDER WHICH BAY NETWORKS WILL PERMIT YOU TO USE THE SOFTWARE If you do not accept these terms and conditions return the product unused and in the original shipping container within 30 days of purchase to obtain a credit for the full purchase price 1 License Grant Bay Networks Inc Bay Networks grants the end user of the Software Licensee a personal nonexclusive nontransferable license a to use the Software either on a single computer or if applicable on a single authorized device identified by host ID for which it was originally acqui
58. P agent and one or more SNMP managers The community has a name and all members of a community have the same access privileges either read only members can view configuration and performance information or read write members can view configuration performance information and also change the configuration This section describes how to add and delete the SNMP communities to which the SNMP agent responds or sends traps Specifying an SNMP Community Name You can add SNMP communities by specifying the name of the community The community name must consists of up to 63 characters including embedded spaces Using the BCC To create a community name navigate to the SNMP prompt and enter community name 117362 A Rev A 3 9 Configuring SNMP RMON BootP DHCP and RARP Services name is any string of printable ASCII characters up to 63 characters in length including embedded spaces For example the following command line creates a community named Router1 and displays its default values snmp community Router1 community Router1 info on snmp label routerl access read only scope type gt This function is not available Using Site Manager To specify the name of a community complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols 2 Choose IP 3 Choose SNMP 4 Choose Communities The Proto
59. RP Services Booting routers Enable BOOTP on these interfaces BOOTP server or Corporate backbone riim NPA0007A Figure 5 1 Enabling BootP in a Sample Network 5 6 117362 A Rev A Customizing BootP To enable BootP on an interface complete the tasks in the following table Site Manager Procedure You do this System responds 1 Inthe Configuration Manager window The Edit Connector window opens click on the connector 2 Choose Edit Circuit The Circuit Definition window opens 3 Choose Protocols The Protocols menu opens 4 Choose Add The Select Protocols window opens 5 Choose BOOTP 6 Click on OK 7 Choose File 8 Choose Exit You return to the Configuration Manager window Specifying Interfaces to Receive and Relay BOOTREQUEST Packets You can specify a forwarding route for BOOTREQUEST packets by defining a relationship between an interface you want to receive BOOTREQUEST packets and another to transmit BOOTREQUEST packets When you define this type of relationship the interface pair appears in the BootP relay agent forwarding table Depending on the configuration of your network you can specify One input IP interface to forward packets to multiple output IP interfaces Multiple input interfaces to forward to multiple output interfaces Multiple input interfaces to forward to one output interface
60. Rev A Customizing SNMP Specifying the Trap Port By default the standard port number on the managing station to which the SNMP agent transmits traps is 162 To use a different UDP port number specify a value from 1 to 9999 Do not specify a port that another application uses Using the BCC To specify the port number on the managing station on which the SNMP agent transmits traps navigate to the manager specific prompt and enter trap port integer integer is a number from 1 to 9999 For example the following command line causes the SNMP agent to transmit traps to manager 2 2 2 2 on port number 150 manager router1 2 2 2 2 trap port 150 manager routerl 2 2 2 24 Using Site Manager To specify the port number on the managing station on which the SNMP agent transmits traps complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose SNMP The SNMP menu opens 4 Choose Communities The SNMP Community List window opens 5 Choose Community The Community menu opens 6 Choose Managers The SNMP Manager List window for that community opens 7 Select the manager you want to edit 8 Choose Manager The Manager menu opens continued 117362 A Rev A 3 15 Configuring SNMP RMON BootP DHCP and RARP Services
61. ST packet The DHCPREQUEST packet contains the address of the target server in the server IP address field 2 34 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts The router receives the packet and forwards it to all servers Those servers examine the packet and if their IP addresses differ from the value in the server IP address field they reclaim the IP addresses they supplied in the DHCPOFFER packets These addresses are now available for other clients The target server recognizes its IP address in the server IP address field and responds to the DHCPREQUEST packet as follows e If the target server can supply the requested configuration parameters it sends a DHCPACK packet to the client through the BootP relay agent The client examines the configuration parameters in the DHCPACK packet and records the duration of the lease period If the client detects a problem with the configuration parameters it sends a DHCPDECLINE packet to the server and issues a new DHCPDISCOVER packet Otherwise the client accepts the configuration parameters e Ifthe target server cannot supply the requested configuration parameters it sends a DHCPNAK packet to the client through the BootP relay agent When the client receives the DHCPNAK packet it broadcasts a new DHCPDISCOVER packet and the process begins again A client may choose to relinquish its IP address before the lease period expires by sending a DHCPRELEASE packet to the s
62. Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens This window lists all the IP interfaces that you have configured for BOOTP services on the router 5 Setthe Enable Disable parameter Click on Help or see the parameter description on page A 20 6 Click on Apply 7 Click on Done You return to the Configuration Manager window Specifying Maximum Number of Hops from Client to Server A hop is the logical distance between a source device and a destination device Source device combinations can include a BootP relay agent and a BootP server a client and a BootP relay agent or two BootP relay agents 5 2 117362 A Rev A Customizing BootP By default the maximum number of hops a packet can take from the source device to the destination device client to server is 4 If the value in the hops field of a BOOTREQUEST packet is greater than the value specified for the max hops parameter the router drops the packet To specify the maximum number of hops from client to server complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu ope
63. The SNMP locking mechanism is enabled by default This means that the SNMP agent identifies the station from which it receives the next SNMP set command and for a time equal to the value of the Lock TimeOut parameter responds only to SNMP set commands from that station If the agent receives an SNMP set command from another network management station during this time it issues an SNMP genErr GetResponse PDU which that station logs as an SNMP Set Error message To allow the SNMP agent to respond to simultaneous SNMP set commands from multiple network management stations set the SNMP locking mechanism to Disable Using the BCC To disable the mechanism navigate to the SNMP prompt and enter lock disabled To reenable the lock mechanism navigate to the SNMP prompt and enter lock enabled Using Site Manager To enable and disable the SNMP lock mechanism complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose SNMP The SNMP menu opens 4 Choose Global The Edit SNMP Global Parameters window opens 5 Set the Use Lock parameter Click on Help or see the parameter description on page A 3 6 Click on OK You return to the Configuration Manager window 117362 A Rev A 3 5 Configuring SNMP RMON BootP DHCP and RARP
64. an configure thresholds for any integer counter gauge or time tick variable in the MIB See Chapter 2 for more information about using thresholds To configure a threshold you must have a good understanding of the MIB and be able to identify the instances of MIB objects to which you want to apply a threshold For complete information about identifying a MIB object or an instance identifier see the statistics section of Configuring and Managing Routers with Site Manager 3 26 117362 A Rev A Customizing SNMP Disabling and Reenabling Thresholds By default the thresholds feature is enabled on all interfaces on which IP is configured To disable and reenable thresholds complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose Global Protocols The Global Protocols menu opens 3 Choose Thresholds The Thresholds menu opens 4 Choose Global The Edit Thresholds Global Parameters window opens 5 Setthe Enable Disable parameter Click on Help or see the parameter description on page A 8 6 Click on OK You return to the Configuration Manager window Setting the Threshold Polling Interval The threshold polling interval sets the time interval at which the agent polls the variable to determine whether that variable has reached a threshold You must set a mini
65. anagers to receive all traps not just generic traps You do this by changing the Trap Types parameter in the SNMP Manager window from Generic the default to AIL For more information about changing communities and community manager parameters see Chapter 3 RMON Interoperability Issues Read the following sections to learn about the issues you should consider when using RMON network management applications with the Ethernet DCM e Hardware and Software Compatibility e RMON Applications e RMON Memory Use Interoperability Issues and Memory Use for RMON Groups These sections assume that you have a good understanding of each RMON group and does not refer to the low level details of the MIB such as RMON MIB objects See RMON MIB Group Controls and Functions on page 2 13 and RFC 1757 for information about each RMON group 117362 A Rev A 2 17 Configuring SNMP RMON BootP DHCP and RARP Services Hardware and Software Compatibility Table 2 3 lists the minimum and recommended versions of software required for RMON operation on BayStack AN and ANH routers Table 2 3 AN ANH Requirements for RMON Minimum Version Recommended Version BayRS Version 9 0 BayRS Version 11 0 an exe v11 0 or later DCM Agent Software Version 1 4 DCM Agent Software Version 1 4 2 in11 142 0bj Table 2 4 lists the minimum versions of software required for RMON operation on BayStack ARN routers
66. at require no action e Warning allows low medium or high threshold exceptions to generate events that indicate an unexpected situation occurred e Debug allows low medium or high threshold exceptions to generate events you use to solve network problems 3 30 117362 A Rev A Customizing SNMP To specify the severity level for event messages complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose Global Protocols The Global Protocols menu opens 3 Choose Thresholds The Thresholds menu opens 4 Choose Thresholds The Thresholds Interface Lists window opens 5 Setthe following parameters Threshold Low Event Level Threshold Medium Event Level Threshold High Event Level Click on Help or see the parameter descriptions beginning on page A 10 6 Click on Done You return to the Configuration Manager window Specifying Threshold Units You can specify the units used to determine whether a variable has exceeded a threshold To generate a threshold event when the variable s rate of change per second reaches one of the three thresholds set the Threshold Units parameter to Persecond To generate a threshold event when the value of the variable reaches one of the three thresholds set the Threshold Units parameter to Absolute 117362 A
67. atistical samples from variables in the Ethernet DCM and compares them to previously configured thresholds The Alarm Table stores configuration entries that define a variable a polling period and threshold parameters If the RMON agent determines that a sample crosses the threshold values it generates an event The RMON agent monitors any variables that resolve to an ASN 1 primitive type of integer integer counter gauge or TimeTick in this way You can specify rising or falling thresholds indicating network faults such as slow throughput or other network related performance problems You specify rising thresholds when you want notice that an alarm has risen above the threshold you specified You specify falling thresholds when you want notice that the network is behaving normally again For example you might specify a falling threshold of 30 collisions per second to indicate a return to acceptable behavior When you configure an alarm condition you must define the following values e The monitoring interval over which data is sampled e The variable to be sampled e Rising and falling thresholds to detect when network trouble starts and ends e The event that takes place when a rising threshold is crossed e The event that takes place when a falling threshold is crossed 117362 A Rev A 2 15 Configuring SNMP RMON BootP DHCP and RARP Services You can specify thresholds for numeric variables such as integer counter gauge
68. atrix group or to configure the filter and capture groups e Store the data for an RMON group for example to store the packets on Ethernet DCM captures In the following sections the word configuration means the set of control tables for a group For example a matrix configuration includes only the matrixControlTable Note that you can create more than one configuration for some RMON groups For example you can create more than one history configuration allowing you to specify different intervals for sampling statistics Interoperability Issues and Memory Use for RMON Groups You should understand the following issues about each RMON group s memory requirements and ability to operate with third party RMON network management applications 2 20 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts Statistics Group When you enable the Ethernet DCM the RMON agent automatically creates a statistics configuration that records data for each network interface Through your RMON network management application you can create as many statistics configurations as memory permits up to the RMON limit of 65 535 configurations If you create multiple configurations it is possible to collect the same set of statistics for the same interface in multiple data tables The absolute values of those statistics may vary from table to table since the baseline of each statistics counter occurs when you create a configuration You may prefer
69. ble 2 2 Example of Threshold and Severity Settings sessuuus 2 8 Table 2 3 AN ANH Requirements for MON eee ceseer eterna eene enean 2 18 Table 2 4 ARN Requirements for RMON 1 ernannt a 2 18 Table 2 5 DRAM and AMON Memory Size 1 terrier etna pn etin ke nn iania 2 20 Table 2 6 Maximum Number or HOSIS oec ree ibit er br eui ER enon 2 22 Table 2 7 Default Size for Capture Buffer ececeecseesseceeeeseeeeeeeceseeeeeteaeeeeeeeeeees 2 24 Table 3 1 SNMP CONTA ESSE TSKE smeide Pda ta IER EIE pa EREMO P ExP dta Pe inners 3 2 Table 3 2 Trap Types Transmitted by the SNMP Agent eseesess 3 16 Table 4 1 Optivity Analysis RMON Based Tools ccccccessseceeceessneeeeeeeesneeeeeees 4 13 Table B 1 SNMP Global Paraltietels ioi recette ecd be anda acted eae B 1 Table B 2 SNMP Community Parameters 22 rade eed e e p Getae rade B 1 Table B 3 SNMP Manager Parameters renean innen nnno reina uS eR e gans B 2 Table B 4 SNMP Irapdatortace PalalfiGl Bl 2eeccsce erectae consc tete mitem B 2 Table B 5 SNMP Threshold Global Parameters ssesseseeeeee B 2 Table B 6 SNMP Threshold Interface Parameters S E B 2 Table B 7 DOM Global Parameters isi pr EDR REEL aa B 3 Table B 8 BootP Relay Agent Interface Parameters sessssssssss B 4 Table B 9 Boot Address Paramietelg crescicccexccesaciercicccsncisccriasues ascremivesceni
70. c vi la t i9 a o D o eo SNMP manager UDP IP Network dependent protocols SNMP RMON BootP DHCP and RARP Concepts Application manages objects SNMP messages Network or Figure 2 1 Role of SNMP SNMP Communities SNMP agent Managed resources SNMP managed objects 2189 5 mn 9 z o 2 gt 3 o oO tc c Q Q c x e sis el2 s t eo 3 73 D oO 9 SNMP agent UDP IP Network dependent protocols internetwork SNM00012A For security reasons the SNMP agent validates each request from an SNMP manager before responding to the request by verifying that the manager belongs to a valid SNMP community 117362 A Rev A 2 3 Configuring SNMP RMON BootP DHCP and RARP Services An SNMP community is a logical relationship between an SNMP agent and one or more SNMP managers You define communities locally at the agent The agent establishes one community for each desired combination of authentication and access control characteristics You assign each community a unique name within the agent and all members of a community have the same access privileges either read only or read write e Read only members can view configuration and performance information e Read write members can view configuration and performance information and also change the configuration By defining a community an agent limits access to its MIB to
71. ces that you have configured for BOOTP services on the router 5 Set the Pass Through Mode parameter Click on Help or see the parameter description on page A 21 6 Click on Apply 7 Click on Done You return to the Configuration Manager window Setting Up the Routing Path Between the BootP Server and the Routers You must define the routing path between the BootP server and the routers to ensure the successful transmission of BOOTREQUEST packets from one end of the network to the other You define this routing path by e Enabling BootP forwarding on upstream routers e Specifying interfaces to receive and relay BOOTREQUEST packets e Creating a BootP relay agent forwarding table for each router in the path Enabling BootP on Router Interfaces Before you enable BootP on router interfaces make sure that the router is in forwarding mode Setting the router to forwarding mode allows the BootP relay agent to route forward all BOOTREQUEST packets and to process both broadcast packets and all packets explicitly addressed to it For instructions on configuring the router in forwarding mode refer to Configuring IP Services You must enable BootP also called BootP pass through or gateway on all interfaces in the paths between the routers and the BootP server For example you would enable BootP on the interfaces indicated in Figure 5 1 117362 A Rev A 5 5 Configuring SNMP RMON BootP DHCP and RA
72. ch entry of the RMON host control table The maximum limit depends on the amount of flash memory available in the DCM When the host control table reaches the maximum value the DCM deletes entries based on an LRU least recently used algorithm The RMON Max Host parameter relates to the RMON host group To verify the number of hosts configured check the MIB object wfDCMmsRMONHost using the Site Manager Statistics tool To specify the maximum number of RMON hosts complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Platform menu opens choose Platform 2 Choose DCM 11 0 and later The DCM 11 0 and Later menu opens 3 Choose Global The Global menu opens 4 Choose Base Module DCM or The Edit Base Module DCM Parameters Expansion Module DCM window opens or the Edit Expansion Module DCM Parameters window opens continued 117362 A Rev A 4 7 Configuring SNMP RMON BootP DHCP and RARP Services Site Manager Procedure continued You do this System responds 5 Set the RMON Max Host parameter Click on Help or see the parameter description on page A 18 6 Click on OK You return to the Configuration Manager window Disabling the RMON Host Control Table By default the RMON Default Host parameter is enabled which causes the router to create the RMON host control table each time you b
73. cols menu opens The IP menu opens The SNMP menu opens The SNMP Community List window opens 5 Choose Community The Community menu opens 6 Choose Add Community The SNMP Community window opens 7 Setthe Community Name parameter Click on Help or see the parameter description on page A 5 8 Click on OK You return to the Configuration Manager window Specifying Community Access Privileges After you specify the name of the community you must assign access privileges to all members of the community You can specify one of two types of access privileges to each community that you define read only or read write 3 10 117362 A Rev A Customizing SNMP By default the router grants read only access privileges to all members of an SNMP community Read only access allows members of a community to view configuration and performance information Set this parameter to Read Write to allow members of a community to view configuration and performance information and also change the configuration of a router Using the BCC By default the community has read only access To obtain read write access navigate to the community specific prompt and enter access readwrite For example the following command line allows read write access to the community Router1 community routerlf access read write community routerli Using Site Manager To specify the access privilege for a communi
74. d RARP Services Host Group When you enable the Ethernet DCM the default setting Disabled for the RMON Default Host parameter will not create a host configuration To create a host configuration set the RMON Default Host parameter to Enable before you enable the Ethernet DCM For instructions on how to enable the Ethernet DCM see Chapter 1 Some RMON network management applications expect the Ethernet DCM to set up a host configuration while others set up their own configurations Note The RMON agent allows you to create only one host configuration Be sure to set the RMON Default Host parameter according to the expectations of the RMON network management application The host configuration requires 148 bytes The host data requires 105 bytes of memory per host address the Ethernet DCM detects on a segment You specify the maximum number of host addresses that appear in the host configuration by setting the RMON Max Host parameter when you enable an Ethernet DCM If there is not enough memory for the number of hosts you request the RMON agent sets the RMON Max Host parameter to the highest possible value The number of addresses can range from 100 to 8 128 hosts depending on the Ethernet DCM memory configuration Table 2 6 shows recommended values for this parameter Table 2 6 Maximum Number of Hosts Installed DRAM MB MAXIMU OSES 2 4 2 048 5 8 4 096 9 16 8 128 You calculate the total memor
75. delete The Delete Community window opens 6 Verify that the correct community name appears on the window Click on Cancel if you do not want to delete the selected community 7 Click on Delete Configuration Manager removes the community from the list 3 12 117362 A Rev A Customizing SNMP Configuring SNMP Community Managers This section describes how to add and delete SNMP community members managers It also describes how to configure managers to receive traps from the SNMP agent Adding a Manager After you have added a community name on the router and assigned access privileges to it you can add specific community members called managers You can add more than one manager to a community By default the IP address 0 0 0 0 is a manager in the public community Note When you add the first IP interface Site Manager automatically creates a read write public community with a wildcard manager 0 0 0 0 For security reasons we recommend that you replace the public community and wildcard manager with a unique community specifying a limited list of managers Using the BCC To add a manager to a community navigate to the community prompt and enter manager address ip address For example the following command line creates a manager with an IP address of 2 2 2 4 and assigns it to the community Routerl community routerl manager address 2 2 2 4 manager routerl 2 2 2 44 117362 A Rev A
76. ding table For information about configuring an AN to use EZ Install refer to Installing and Operating BayStack AN and ANH Systems For information about DLCIs and frame relay refer to Configuring Frame Relay Services Creating a BootP Client Interface Table You create a BootP client interface table by specifying the client IP address and the frame relay PVC DLCI number Specifying the Client IP Address You must specify the IP address of the remote AN router that will boot using EZ Install over a frame relay group access PVC connection to the router 117362 A Rev A 5 11 Configuring SNMP RMON BootP DHCP and RARP Services To specify a client IP address complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens 5 Click on Client I F The BOOTP Client Interface window opens 6 Click on Add The BOOTP Client Interface Address window opens 7 Set the IP Address parameter Click on Help or see the parameter description on page A 24 8 Click on OK 9 Click on Done You return to the Configuration Manager window Specifying the DLCI Number You must specify in decimal format the f
77. e event in the log table The log table is a read only data table for the network management station It records each event that needs to be logged It provides the event number an index that distinguishes occurrences of the same event the time at which the event occurred and the event description You are not required to configure the log table 2 16 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts Event Trap Considerations To allow RMON to generate trap events you must set up the SNMP managers table with the SNMP community names for example Public that you are using with the network management application for example Optivity LAN or Optivity Analysis and with the hosts on which you are running applications If you fail to make these changes the router will be unable to send trap events to the network management station See Chapter 3 for instructions on how to set up an SNMP managers table When you set up the SNMP managers table you can either use the SNMP community names that the network management application uses and modify the trap receiving tables on the router to use these names or you can configure the router to use specific SNMP community names and modify the network management software to use these names When configuring SNMP community managers you must assign each manager a specific IP address you cannot specify a wildcard for the community manager address Also you must configure community m
78. e object name rather than the OID in the event message To configure the software to report the object name in the event message use the Threshold Label parameter see page A 15 in Appendix A For example if you set the Threshold Label parameter to wfCctOptsCngcCfgQp1 Threshold the agent generates an event message similar to the following 1 08 27 96 10 53 20 802 INFO SLOT 2 STA CODE 6 Object wfCctOptsCngcCfgQOplThreshold with value 120 units hour is low threshold State of a Threshold If the collision rate stays above a threshold for an extended period of time the agent continues to generate a new event every 5 seconds You can specify the maximum number of event messages you want the agent to generate before it changes the threshold s state to held When the threshold is in a held state the agent does not generate new events unless the statistic exceeds the threshold at a different level If the statistic does not exceed any threshold for a specified number of polling periods the agent no longer considers the threshold held Memory Considerations Polling statistics to determine whether they have reached a threshold and reporting events when variables exceed thresholds require router processing capacity When you set many thresholds and use shorter polling intervals the router performance will probably decline RMON Overview RMON is a standard MIB that defines current and historical MAC layer statistics and c
79. econds that the router waits before forwarding a BOOTREQUEST packet If the value in the seconds field of the packet is less than the value of the Timeout Secs parameter you configured on the interface the router drops the packet The hops field contains the maximum number of hops that a packet can take between the source and destination devices If the packet has traversed more hops than the value of the hops parameter you specified for that interface the router drops the packet 2 28 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts If the router accepts the packet it alters the packet by e Incrementing the hops field by 1 e Writing the IP address of the input interface to the gateway IP address field The router then determines which networks should receive this packet and broadcasts it to other networks through a forwarding route that you specify when you configure the router for BootP services If the BootP packet has to travel to a network through another router you must specify the forwarding route using one of the following methods e Configure the second router for BootP services In this case the second router inspects the packet in the same way as the first router and increments the hops field by 1 The second router will not however replace the address in the gateway IP address field because servers will reply to the first router that received the BOOTREQUEST packet e Configure the first router
80. ecseceeeeeseeeeseeeesaaeeas A 27 FABRI Adams Tad Se Liuius estie Ima Etec t m RU EE A 27 X 117362 A Rev A Appendix B Default Parameter Settings SNMP Parameters H P E B 1 DCM Global Parameters secet netta nda aka cka a duk i rade a bn race 4 xk L Rasa pam LER IAE B 3 BootP and DHCP Parameters ncn nts TR Ne THO B 4 BAPBP PARES Locri C Lu bns eI ULM ro DIN EU C E E IE B 5 Index 117362 A Rev A xi Figure 2 1 Figure 2 2 Figure 2 3 Figure 2 4 Figure 2 5 Figure 2 6 Figure 2 7 Figure 2 8 Figure 2 9 Figure 2 10 Figure 5 1 117362 A Rev A Figures Pret at SINR is C ET 2 3 Sample RMON COMmQUIATION 2 s0c ccc ccs ctessetaniciedaneonntennetanindance 2 11 Hay Networks RMON Architecture 1 ccccce aser tosnccoacacbentaciaanmesdcincmas 2 12 BootP Client and Server on the Same Physical Network 2 26 BootP Client and Server on Different Physical Networks eee 2 27 BOOTREQUEST and BOOTREPLY Fields eerte 2 28 identiiying DEHOP Severe uui cesis niis quentes iaaa 2 32 Fields in a DHCP Packet eoe uie adt pape dt Rae p DIR teRUSS Tro 2 33 Requesting and Receiving IP Information ssssssssss 2 34 RARP Server Supplying an IP Address sssssssssss 2 36 Enabling BootP ina Sample Network 2 ccce neri ratae 5 6 xiii Tables Table 2 1 De IRE MUN ER 2 5 Ta
81. eferred server configuration parameters Relay Agent IP Address Configuration Manager gt Protocols gt IP gt BOOTP gt Relay Agent Interface Table gt Pref Serv gt Add None Any valid IP address Specifies the IP interface that receives BOOTREQUEST packets from clients Enter the IP address of a numbered network interface that you want to receive BOOTREQUEST or DHCP packets from clients and then configure this IP address on the router if you have not already done so Do not specify an unnumbered interface for this parameter 1 3 6 1 4 1 18 3 5 3 8 3 3 1 3 Target Server IP Address Configuration Manager gt Protocols gt IP gt BOOTP gt Relay Agent Interface Table gt Pref Serv gt Add None Any valid IP address Specifies the address of a server that should receive BOOTREQUEST or DHCP packets Enter the IP address of the server that should receive the BOOTREQUEST or DHCP packets 1 3 6 1 4 1 18 3 5 3 8 3 3 1 4 117362 A Rev A A 25 Configuring SNMP RMON BootP DHCP and RARP Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Enable Disable Configuration Manager gt Protocols gt IP gt BOOTP gt Relay Agent Interface Table gt Pref Serv gt Add Enable Enable Disable Specif
82. enter delete For example the following command line causes the SNMP agent to delete the manager 2 2 2 2 from the community router manager router1 2 2 2 2 delete community router1 Using Site Manager To delete a manager complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose SNMP The SNMP menu opens 4 Choose Communities The SNMP Community List window opens 5 Select the community from which you want to delete the manager 6 Choose Community The Community menu opens 7 Choose Managers The SNMP Manager List window for that community opens 8 Select the manager you want to delete 9 Choose Manager The Manager menu opens 10 Choose Delete Manager The Delete SNMP Manager window opens 11 Make sure that the correct manager IP address appears 12 Click on Delete Configuration Manager removes the manager from the community 3 18 117362 A Rev A Customizing SNMP Configuring Traps on the Router A trap is an event that the router transmits to some external network device such as a network management station You can specify which log events the SNMP agent sends to the network management station as traps based on the following e Slot number the number of the slot on which
83. enter traps trap_type trap_type is either Generic Specific All or None 3 16 117362 A Rev A Customizing SNMP For example the following command sequence causes the SNMP agent to transmit Specific traps to manager 2 2 2 2 manager routerl 2 2 2 24 traps specific manager routerl 2 2 2 2 Using Site Manager To specify a trap type complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose SNMP The SNMP menu opens 4 Choose Communities The SNMP Community List window opens 5 Choose Community The Community menu opens The SNMP Manager List window for that community opens 6 Choose Managers 7 Select the manager you want to edit 8 Choose Manager The Manager menu opens 9 Choose Edit Manager The SNMP Manager window opens 10 Set the Trap Types parameter Click on Help or see the parameter description on page A 6 11 Click on OK You return to the Configuration Manager window Deleting a Manager You can delete a manager from its associated community by deleting the manager s IP address from the list of SNMP managers 117362 A Rev A 3 17 Configuring SNMP RMON BootP DHCP and RARP Services Using the BCC To delete a manager navigate to the manager specific prompt and
84. er reclaims it The address is then available for other clients The BootP relay agent receives the DHCPOFFER packet and examines the packet If the BootP relay agent accepts the packet it forwards it to the client If a client does not receive a DHCPOFFER packet within a specified amount of time after broadcasting a DHCPDISCOVER packet it sends the packet again The client will rebroadcast the packet up to 10 times 117362 A Rev A 2 33 Configuring SNMP RMON BootP DHCP and RARP Services The client may receive DHCPOFFER packets from several potential servers If you configure the client to wait for multiple responses it compares configuration parameters in the DHCPOFFER packets to decide which server to target Figure 2 9 shows the second and third stages of the process Server i 1 Client broadcasts 2 BOOTP relay agent a DHCPREQUEST transmits DHCPREQUEST packet packet to all servers PM Client that supplied a DHCPOFFER packet de gt gt Li B M a lt a 4 BOOTP relay agent E 3 Target server transmits transmits DHCPACK DHCPACK or DHCPNAK or DHCPNAK packet to BOOTP relay packet to client agent Router BOOTP relay agent SNM0006A Figure 2 9 Requesting and Receiving IP Information 5 When the client has chosen a target server it broadcasts a DHCPREQUE
85. erver This packet contains the relinquished IP address in the client IP address field and the client s MAC address in the client hardware address field Acquiring the Same IP Address Again A client may want to reuse an IP address that a server allocated earlier by DHCP In this case the interchange between client and server omits some of the steps described in the previous section and proceeds as follows 1 The client starts the interchange by broadcasting a DHCPREQUEST packet that contains its previous IP address in the client IP address field The BootP relay agent forwards the packet to DHCP servers on other networks DHCP servers examine the client s configuration parameters in the options field of the DHCPREQUEST packet 117362 A Rev A 2 35 Configuring SNMP RMON BootP DHCP and RARP Services 4 The server that originally supplied the configuration parameters recognizes them and responds with a DHCPACK packet 5 When a client receives a DHCPACK packet it accepts or declines the parameters as it would when receiving a new IP address If a client s request is invalid for example if the client has moved to a new network servers respond with a DHCPNAK packet If a client receives only DHCPNAK packets it must request a new IP address by broadcasting a DHCPDISCOVER packet RARP Overview You can use a Bay Networks router as a Reverse Address Resolution Protocol RARP server that assigns IP addresses
86. eters The Configuration Manager supplies values for the remaining parameters Enabling BootP on an Interface When you select either a link or net module connector or when you finish configuring a WAN circuit the Select Protocols window opens Note The Select Protocols window displays only those protocols that the circuit type supports To enable BootP on an interface complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Select Protocols window opens select the link or net module connector on which you are enabling BootP services 2 Choose BOOTP The BOOTP menu opens When you choose BOOTP you automatically choose IP 3 Click on OK The IP Configuration window opens continued 117362 A Rev A Configuring SNMP RMON BootP DHCP and RARP Services Site Manager Procedure continued You do this System responds 4 Specify an IP address for this interface There is no default for the IP address You must supply an address or enter 0 0 0 0 to indicate that this is an unnumbered interface For information about unnumbered interfaces see Configuring IP Services 5 Edit or accept default values for the remaining IP interface parameters To accept the default values click on OK To edit IP interface parameters click on Details See Configuring IP Services for informa
87. ettings SNMP Parameters Table B 1 to Table B 6 list the Site Manager default parameter settings for SNMP Table B 1 SNMP Global Parameters Parameter Default Enable Enable Use Lock Enable Lock Time Out 2 minutes Authentication Failure Traps Enable Table B 2 SNMP Community Parameters Parameter Default Community Name None Access Read Only 117362 A Rev A B 1 Configuring SNMP RMON BootP DHCP and RARP Services Table B 3 SNMP Manager Parameters Parameter Default Trap Port 162 Trap Types Generic Table B 4 SNMP Trap Interface Parameters Parameter Default Entity Code None Event Code None Always Never Trap None Table B 5 SNMP Threshold Global Parameters Parameter Default Enable Disable Enable Polling Interval 60 seconds Table B 6 SNMP Threshold Interface Parameters Parameter Default Threshold Enable Enable Threshold Low Value 0 Threshold Low Event Level Info Threshold Medium Value 0 Threshold Medium Event Level Info continued B 2 117362 A Rev A Default Parameter Settings Table B 6 SNMP Threshold Interface Parameters continued Parameter Default Threshold High Value 0 Threshold High Event Level Info Threshold Units Persecond Threshold Action Greaterthan Threshold Max Successive Alarms 5 Threshold HoldDown I
88. f memory and processing power Example When you enable an Ethernet DCM the RMON agent automatically creates a history configuration Suppose you then start a third party RMON history application that creates its own history configuration for the agent The RMON agent stores the data in two places wasting memory In addition when you terminate the third party RMON application it does not remove its history configuration using memory and processing power indefinitely You can release these resources only by using another application such as the SNMP tool or network management station or by resetting the Ethernet DCM If you use too many resources for an RMON task the DCM can run out of memory for other RMON tasks and perform more slowly 117362 A Rev A 2 19 Configuring SNMP RMON BootP DHCP and RARP Services RMON Memory Use The total amount of available RMON memory depends on the dynamic random access memory DRAM in the Ethernet DCM Table 2 5 Table 2 5 DRAM and RMON Memory Size Available RMON Installed DRAM MB Memory in Bytes 2 162 578 4 2 077 330 8 5 222 034 16 12 561 042 If the RMON memory pool is full or if the RMON agent reaches an implementation limit the agent responds to an SNMP set command on an RMON control table entry with an SNMP GEN ERROR The following sections describe how much memory you need to e Configure an RMON group for example to configure the m
89. fault settings for BootP Chapter 5 Change the default settings for DHCP Chapter 6 Change the default settings for RARP Chapter 7 Obtain information about Site Manager parameters this is the same Appendix A information you obtain using Site Manager online Help Quickly obtain the default setting for an SNMP DCM BootP DHCP or Appendix B 117362 A Rev A xvii Configuring SNMP RMON BootP DHCP and RARP Services Before You Begin Before using this guide with a new router you must complete the following procedures e Install the router refer to the installation manual that came with your router e Connect the router to the network and create a pilot configuration file see Quick Starting Routers Configuring BayStack Remote Access or Connecting ASN Routers to a Network Make sure that you are running the latest version of Bay Networks Site Manager and router software For instructions see Upgrading Routers from Version 7 11 xx to Version 12 00 Conventions angle brackets lt gt Indicate that you choose the text to enter based on the description inside the brackets Do not type the brackets when entering the command Example if command syntax is volume number filename you enter 1 dcm image bold text Indicates text that you need to enter command names and buttons in menu paths Example Enter 1 dcm image Example Use the commit command Example Protocols IP SNMP Trap Configurati
90. figuration parameters you must reenable the Ethernet DCM for these changes to take effect To modify the DCM configuration complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Platform menu opens choose Platform 2 Choose DCM 11 0 and later The DCM 11 0 and Later menu opens 3 Choose Global The Global menu opens 4 Choose the following options If you choose Base Module DCM the Base Module DCM Edit Base Module DCM Parameters Expansion Module DCM window opens If you chose Expansion Module DCM for an ARN the Edit Expansion Module DCM Parameters window opens with parameters identical to those in the Edit Base Module DCM Parameters window continued 4 2 117362 A Rev A Customizing a DCM for RMON Site Manager Procedure continued You do this System responds 5 Set the Enable Disable parameter Click on Help or see the parameter description on page A 15 6 Click on OK You return to the Configuration Manager window Specifying the DCM Boot Image Name By default the DCM uses the boot image in its own flash memory for booting If the Boot Option parameter is set to Download you must specify a boot image from the BayStack router s flash memory The boot image name cannot exceed 255 characters To specify the DCM boot image enter the volume and file name for the ima
91. ftware or related technical data or information without first obtaining any required export licenses or other governmental approvals Without limiting the foregoing Licensee on behalf of itself and its subsidiaries and affiliates agrees that it will not without first obtaining all export licenses and approvals required by the U S Government i export re export transfer or divert any such Software or technical data or any direct product thereof to any country to which such exports or re exports are restricted or embargoed under United States export control laws and regulations or to any national or resident of such restricted or embargoed countries or ii provide the Software or related technical data or information to any military end user or for any military end use including the design development or production of any chemical nuclear or biological weapons 9 General If any provision of this Agreement is held to be invalid or unenforceable by a court of competent jurisdiction the remainder of the provisions of this Agreement shall remain in full force and effect This Agreement will be governed by the laws of the state of California Should you have any questions concerning this Agreement contact Bay Networks Inc 4401 Great America Parkway P O Box 58185 Santa Clara California 95054 8185 LICENSEE ACKNOWLEDGES THAT LICENSEE HAS READ THIS AGREEMENT UNDERSTANDS IT AND AGREES TO BE BOUND BY ITS TERMS AND CONDITIONS LICENSEE
92. g and Reenabling RARP Interfaces T eile ide E oM 7 2 Derim te RARP Mappng TADIS 22 pa aea Pr OD E De Rn ql Fr pO ERR Cor RR te 7 2 Specifying the Clients MAC Address eeiei ise ceu etant anale 7 3 PSC Miri ihe Chens IF AOU 7 4 issn RARP DIOE aocoasstredecs abo hao vers cb onebon ado RE b ebbe donna ag 7 5 Deleting RARP Globally OT m TT statuis eae TT re Creer Te 7 5 Appendix A SNMP DCM BootP DHCP and RARP Parameter Descriptions SNMP Global Parametrs EE EE E A 3 SNMP Community Parameters oasis s cce bdiskce auus adc Fus estu abren en dU Rada ada A 5 SNMP Manager Parameters bains C n TT m A 6 SNMP Trap Interface PAISIelebs iss se pto eben ne np cr Saeco a decano A 7 SNMP Threshold Global Parameters iica ecce taken a tan Recta eue ck khan aa A 8 SNMP Threshold Interface Parameters 12 ose cenae rtis ene HR nes axi aas aa A 9 DOM Global PWG ORES suec ite rn in a e ee ab vc E ERR UE A 15 BooiP and DACP Parameters a s cicccssescaccnanssicacoansnscaccannnenaacinannveas TUE A 20 BootP Relay Agent Interface Parameters ssssssssssseeeee A 20 Bob Address PareiTtel oirean pee ese deli eoe Cd s v st sb A 22 BootP Client Interface Address Parameters rnm A 24 BootP Preferred Server Configuration Parameters sss A 25 RAPP Interface Parameters ccccccccccccccccsecsessessesecceseseeeseescseseesaea
93. ge you want the DCM to boot using the following format volume number filename For example 1 dcm image To specify the DCM boot image name complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Platform menu opens choose Platform 2 Choose DCM 11 0 and later The DCM 11 0 and Later menu opens 3 Choose Global The Global menu opens 4 Choose Base Module DCM or The Edit Base Module DCM window Expansion Module DCM opens or the Edit Expansion Module DCM Parameters window opens continued 117362 A Rev A 4 3 Configuring SNMP RMON BootP DHCP and RARP Services Site Manager Procedure continued You do this System responds 5 Set the Image Name parameter Click on Help or see the parameter description on page A 16 6 Click on OK You return to the Configuration Manager window Specifying the Boot Option By default the DCM uses the image file in DCM local flash memory as the DCM boot image If you want the DCM to use an image file on the BayStack router s flash memory as the DCM boot image set the Boot Option parameter to Download When the DCM boots in Download mode the DCMMW software moves a copy of the image to DCM shared memory You specify the downloaded image with the Image Name parameter If you want the DCM to use the image file in DCM local flash memory as the D
94. ger and router SNMP agents in turn enable you to access and manage objects in an active or inactive stored MIB on a particular router The agents also send unsolicited reports called traps back to the network management station when certain network activity occurs An example of a trap is an overload condition as defined by the packet load s crossing some threshold You use the management station to configure monitor and receive trap messages from other network devices configured as SNMP agents The management station can get and set objects in the agents and can receive traps from the agents The management station therefore has the capability to manage a number of agents SNMP Messages SNMP managers and network elements communicate with each other by sending SNMP messages Figure 2 1 The management station issues three types of SNMP messages to retrieve single or multiple object variables e GetRequest messages e GetNextRequest messages e SetRequest messages The agent acknowledges all three types of messages in the form of a Get Response message which is passed to the management application In addition an agent may issue a trap to the network management station to identify the occurrence of a condition such as a threshold that exceeds a predefined value 117362 A Rev A SNMP management station Management application MS T 5 9 g 2 2 o o 3 o oO ao c on Q Citi gis En o amp P
95. graph c 1 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 Notwithstanding any other license agreement that may pertain to or accompany the delivery of this computer software the rights of the United States Government regarding its use reproduction and disclosure are as set forth in the Commercial Computer Software Restricted Rights clause at FAR 52 227 19 Statement of Conditions In the interest of improving internal design operational function and or reliability Bay Networks Inc reserves the right to make changes to the products described in this document without notice Bay Networks Inc does not assume any liability that may occur due to the use or application of the product s or circuit layout s described herein Portions of the code in this software product are Copyright 1988 Regents of the University of California All rights reserved Redistribution and use in source and binary forms of such portions are permitted provided that the above copyright notice and this paragraph are duplicated in all such forms and that any documentation advertising materials and other materials related to such distribution and use acknowledge that such portions of the software were developed by the University of California Berkeley The name of the University may not be used to endorse or promote products derived from such portions of the software without specific prior written permission SUCH PORTI
96. guration Manager window Rebooting the Ethernet DCM After you finish modifying the DCM configuration parameters you must reboot the Ethernet DCM for these changes to take effect You do this by reenabling the Ethernet DCM if it is in a disabled state To reboot the Ethernet DCM complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Platform menu opens choose Platform 2 Choose DCM 11 0 and later The DCM 11 0 and Later menu opens 3 Choose Global The Global menu opens 4 Choose Base Module DCM or The Edit Base Module DCM Parameters Expansion Module DCM window opens or the Edit Expansion Module DCM Parameters window opens 5 Set the Enable Disable parameter Click on Help or see the parameter description on page A 15 6 Click on OK You return to the Configuration Manager window 4 10 117362 A Rev A Customizing a DCM for RMON Deleting the Ethernet DCM Software Subsystem The router requires the DCMMW software to communicate with the Ethernet DCM Deleting DCMMW deactivates the Ethernet DCM Note Always try disabling the Ethernet DCM by setting the Enable Disable parameter to Disable before you delete the DCMMW software To completely deactivate the Ethernet DCM complete the tasks in the following table Site Manager Procedure You do this System resp
97. hich you want the agent to generate a high threshold exception event 1 3 6 1 4 1 18 3 3 2 6 2 1 9 Threshold High Event Level Configuration Manager gt Protocols gt Global Protocols gt Thresholds gt Thresholds Info Info Warning Debug Specifies the severity level of the event message the agent generates when a variable exceeds the high threshold Select Info if you want high threshold exceptions to generate routine events that require no action Select Warning if you want high threshold exceptions to generate events that indicate an unexpected situation occurred Select Debug if you want high threshold exceptions to generate events you use to solve network problems 1 3 6 1 4 1 18 3 3 2 6 2 1 10 A 12 117362 A Rev A SNMP DCM BootP DHCP and RARP Parameter Descriptions Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Threshold Units Configuration Manager gt Protocols gt Global Protocols gt Thresholds gt Thresholds Persecond Persecond Absolute Specifies the units used to determine whether a variable has exceeded a threshold Select Persecond if you want the agent to generate a threshold event when the variable s rate of change per second reaches one of the three thresholds Select Absolute if you want the agent to generate a threshold event when the value of the va
98. hold for the number of polling intervals equal to the value of the Threshold HoldDown Intervals parameter 1 3 6 1 4 1 18 3 3 2 6 2 1 14 Threshold HoldDown Intervals Configuration Manager gt Protocols gt Global Protocols gt Thresholds gt Thresholds 1 Any integer value Specifies the number of exception free polling intervals through which a variable in a held state must pass before the variable is no longer considered held Specify the number of exception free polling intervals The lower the number you select the more likely the agent is to generate repetitive event messages for a variable that is intermittently exceeding thresholds 1 3 6 1 4 1 18 3 3 2 6 2 1 15 A 14 117362 A Rev A Parameter Path Default Options Function Instructions MIB Object ID SNMP DCM BootP DHCP and RARP Parameter Descriptions Threshold Label Configuration Manager gt Protocols gt Global Protocols gt Thresholds gt Thresholds ASN 1 OID ASN 1 OID String identifier Specifies a name for the MIB object in string format to replace the ASN 1 object identifier The string you enter appears in the log file making it easier to identify the object that is the subject of the trap Type a name for the MIB object or leave this field empty to use the ASN 1 object identifier 1 3 6 1 4 1 18 3 3 2 6 2 1 22 DCM Global Parameters Parameter Path Default Options Function Instructions MIB Object ID
99. holds for a variable 3 28 events 2 4 implementation notes 2 4 to 2 9 messages GetNextRequest 2 2 GetRequest 2 2 network elements 2 2 network management station 2 2 overview 2 1 security 2 3 setting the threshold polling level 3 26 specifying a lock address 3 6 specifying a lock timeout value 3 6 specifying a threshold object name 3 34 specifying a trap entity 3 19 specifying a trap type 3 20 specifying a value for the threshold level 3 29 specifying an SNMP community name 3 9 specifying community access privileges 3 11 specifying polling intervals for help variables 3 33 specifying the severity level for event messages 3 29 specifying threshold units 3 30 traps 2 2 2 5 SNMP messages 2 2 SNMP parameters defaults B 1 threshold interface Threshold Action A 13 Index 3 Threshold High Event Level A 12 Threshold High Value A 12 Threshold Label A 15 Threshold Low Event Level A 10 Threshold Low Value A 10 Threshold Max Successive Alarms A 14 Threshold Medium Event Level A 11 Threshold Medium Value A 11 Threshold Units A 13 SNMP thresholds configuring 3 25 software configuration Optivity 2 19 RMON 2 19 starting BootP services 1 8 DHCP 1 9 IP 1 2 RARP services 1 11 Statistics group 2 21 Subnet Mask parameter IP configuration 1 3 T Technical Solutions Centers xxi Threshold Action parameter A 13 Threshold High Event Level parameter A 12 T
100. however to use only one statistics configuration to conserve memory for other RMON groups You need 200 bytes of memory for each statistics configuration History Group When you enable the Ethernet DCM the RMON agent automatically creates a history configuration that collects history data at two intervals The first configuration provides short term history by sampling statistics every 30 seconds and holding up to 50 samples in RMON terms buckets The second configuration provides long term history by sampling statistics every 30 minutes and holding up to 50 buckets Through your RMON network management application you can create as many history configurations as memory permits up to the RMON limit of 65 535 configurations You can also set the number of buckets a particular history configuration uses to as many as available memory allows If you request more buckets than memory allows the agent allocates enough buckets to fill available memory You need 504 bytes of memory for each history configuration 252 bytes each for the short term and long term history configurations The history data requires 52 bytes of memory per bucket You calculate the total memory in bytes you need to store the data as follows number of buckets 52 2 history configurations This calculation shows that you need approximately 5 1 KB for the default setting of 50 buckets 117362 A Rev A 2 21 Configuring SNMP RMON BootP DHCP an
101. hreshold Level Low Medium High Depth of 102 153 205 Priority 1 40 of capacity 60 of capacity 80 of capacity transmit queue Severity of event INFO INFO WARNING When you add this threshold to the MIB the agent polls the variable wfCctOptsCngcCfgQp1Threshold every 20 seconds and responds as follows e If its value is greater than 102 but less than or equal to 153 the manager logs an informational event indicating that the queue depth exceeded the low threshold e If its value is greater than 153 but less than or equal to 205 the manager logs an informational event indicating that the queue depth exceeded the medium threshold e If its value is greater than 205 the manager logs a warning event indicating that the queue depth exceeded the high threshold Event Message Format By default the threshold event messages include the MIB object identifier OID of the variable that exceeded the threshold the value of the variable and the threshold level exceeded For example if the wfCctOptsCngcCfgQp1Threshold variable has a value of 120 the agent generates an event message similar to the following 1 08 27 96 10 53 20 802 INFO SLOT 2 STA CODE 6 Object 1 3 6 1 4 1 18 3 5 1 4 10 1 24 with value 120 units hour is gt low threshold 2 8 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts You can however identify objects more easily by configuring the software to report th
102. hreshold High Value parameter A 12 Threshold Label parameter 2 9 A 15 Threshold Low Event Level parameter A 10 Threshold Low Value parameter A 10 Threshold Max Successive Alarms parameter A 14 Threshold Medium Event Level parameter A 11 Threshold Medium Value parameter A 11 threshold polling interval 3 26 Threshold Units parameter A 13 thresholds adding 3 27 configuring A 8 to A 15 Index 4 defining state of 2 9 definition 2 7 disabling 3 26 enabling 3 26 memory considerations 2 9 severity levels 2 8 Transmit Bcast Addr parameter IP configuration 1 3 trap messages 2 5 format 2 6 severity levels 2 5 traps 2 2 configuring 3 19 to 3 25 exceptions 3 23 U UnNumbered Assoc Address parameter IP configuration 1 3 unnumbered interfaces using for BootP and DHCP services 5 13 117362 A Rev A
103. i iccit nie tceseiiattctu sno E iet Sepp ICE IER RIRIESi SERM LEE ES ANTE Ee eREER 1 5 WISI Ne ENO E PH 1 5 Using Site Manager E AEE nederdel cadens Pe Ne MEC E 1 5 Customizing SNMP Senio e 1 6 SAL PAN caipira a M RD EU uA Utd 1 6 Enabling the Ethernet DOM PEE EROR ERES OREERNR UR isse USER REOR ERIS dade t pU TONES 1 7 Gustong the Ethernet DOM i e tice mesa parsnip 1 8 Starina BOO OON EOS arraira aaa iare ccoondi esa ue Samba da der DOOR Fes ber kar a ea d nen 1 9 Enabling Boor on ad Menace uie cos di ecd eeecs pitt se areca 1 9 pi SCS P 4 BOF iios a ege d e bo d pa Tenn rere RS cd EP er add 1 10 Staring DHCP Services ice tercii nioke iibris pesas cerca eines er E 1 10 Enabling DHCP on ari MENACE Mom 1 11 117362 A Rev A V vea prt M S 1 11 SANO RARP 3 t ET EO sunnaiaans 1 12 Enabling RARP on ah Merate 22i reectereter Ine Ebr rhe ipee pec e esie PER dede 1 12 erc pet in E EDD 1 13 Chapter 2 SNMP RMON BootP DHCP and RARP Concepts SNMP Overview sesser pionii Scot peniaiestvacand DE EE E rrinin 2 1 SNMP MSR GOSS sidien aoa EAA OE a EAIA S EENEI 2 2 AA PREPARES E E E E E ono dui E NE RK 2 3 SNMP Implementation Notes ineo dct edidi TS mace iode ade ewes TE T 2 4 uhr rar c2 e Peer eres rer eer errr err esr er Tt peer n tree eT tee ere teeter tre re reer ree 2 4 Evene and TOR ccncusnenndiiehcenue neste needa eee 2 4 PIC EGS sicion an a
104. iable 1 3 6 1 4 1 18 3 3 2 6 2 1 2 117362 A Rev A A 9 Configuring SNMP RMON BootP DHCP and RARP Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Threshold Low Value Configuration Manager gt Protocols gt Global Protocols gt Thresholds gt Thresholds 0 Any integer value Sets the value of the low threshold for this variable Specify the level at which you want the agent to generate a low threshold exception event 1 3 6 1 4 1 18 3 3 2 6 2 1 5 Threshold Low Event Level Configuration Manager gt Protocols gt Global Protocols gt Thresholds gt Thresholds Info Info Warning Debug Specifies the severity level of the event message the agent generates when a variable exceeds the low threshold Select Info if you want low threshold exceptions to generate routine events that require no action Select Warning if you want low threshold exceptions to generate events that indicate an unexpected situation occurred Select Debug if you want low threshold exceptions to generate events you use to solve network problems 1 3 6 1 4 1 18 3 3 2 6 2 1 6 A 10 117362 A Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID SNMP DCM BootP DHCP a
105. ication failure traps from a false manager or community snmp authentication traps enabled snmp Using Site Manager To enable or disable authentication failure traps complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose SNMP The SNMP menu opens 4 Choose Global The Edit SNMP Global Parameters window opens 5 Setthe Authentication Failure Traps parameter Click on Help or see the parameter description on page A 4 6 Click on OK You return to the Configuration Manager window 3 8 117362 A Rev A Customizing SNMP Specifying the Type of Service for the SNMP Packet Site Manager does not support this function You can specify the type of service in which SNMP packets will be generated by setting the type of service to either reliability or normal For SNMP high reliability type of services is important By default the type of services is set to reliability To specify the type of service navigate to the SNMP prompt and enter type of service reliability normal For example the following command line causes SNMP to generate packets with a type of service of reliability snmp type of service reliability snmp Adding SNMP Communities An SNMP community is a logical relationship between an SNM
106. ies whether the forwarding route is active Select Enable to allow BootP or DHCP forwarding through this route select Disable to prevent BootP or DHCP forwarding through this route 1 3 6 1 4 1 18 3 5 3 8 3 3 1 2 Target Name Configuration Manager gt Protocols gt IP gt BOOTP gt Relay Agent Interface Table gt Pref Serv gt Add None Any string of printable ASCII characters up to 63 characters in length including embedded spaces Specifies the target server s host name If you want to keep track of the names of BootP or DHCP servers enter the target server s host name 1 3 6 1 4 1 18 3 5 3 8 3 3 1 5 Pass Through Mode Configuration Manager Protocols IP BOOTP Relay Agent Interface Table gt Pref Serv gt Add BOOTP BOOTP DHCP BOOTP and DHCP Specifies whether the interface relays BootP DHCP or both BootP and DHCP requests Select BOOTP to relay BootP requests select DHCP to relay DHCP requests select BOOTP and DHCP to relay both kinds of requests 1 3 6 1 4 1 18 3 5 3 8 3 3 1 6 A 26 117362 A Rev A SNMP DCM BootP DHCP and RARP Parameter Descriptions RARP Interface Parameters Parameter Path Default Options Function Instructions MIB Object ID Use the following guidelines to configure RARP interface parameters in the RARP Interface Table window Enable Disable Configuration Manager gt Protocols gt IP gt Reverse ARP gt Interface Table Enable E
107. intellectual property Licensee shall not sublicense assign or otherwise disclose to any third party the Software or any information about the operation design performance or implementation of the Software and user manuals that is confidential to Bay Networks and its licensors however Licensee may grant permission to its consultants subcontractors and agents to use the Software at Licensee s facility provided they have agreed to use the Software only in accordance with the terms of this license 3 Limited warranty Bay Networks warrants each item of Software as delivered by Bay Networks and properly installed and operated on Bay Networks hardware or other equipment it is originally licensed for to function substantially as described in its accompanying user manual during its warranty period which begins on the date Software is first shipped to Licensee If any item of Software fails to so function during its warranty period as the sole remedy Bay Networks will at its discretion provide a suitable fix patch or workaround for the problem that may be included in a future Software release Bay Networks further warrants to Licensee that the media on which the Software is provided will be free from defects in materials and workmanship under normal use for a period of 90 days from the date Software is first shipped to Licensee Bay Networks will replace defective media at no charge if it is returned to Bay Networks during the warranty period along
108. ity name and then click on Remove 9 Repeat steps 6 through 8 for other slots you want to configure 10 Click on Save You return to the Configuration Manager window 3 20 117362 A Rev A Customizing SNMP Specifying the Severity Level for Traps Trap messages are always associated with one of five severity levels information warning fault trace or debug The severity level defines the type of trap that the SNMP agent sends to the network management station for the slot number and entity type you specified For a description of the severity levels see Event Messages for Routers Using the BCC By default the attribute for all levels is set to off To turn on fault level messages enter fault log on To turn on warning level messages enter warning log on To turn on information level messages enter information log on To turn on trace level messages enter trace log on To turn on debug level messages enter debug log on Using Site Manager To specify a trap entity and the severity level at which you want to receive the trap complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens continued 117362 A Rev A 3 21 Configuring SNMP RMON BootP DHCP and RARP Services Site Manager Procedure conti
109. ks implements the following groups in its RMON agent for the router e Statistics e History e Host e HostTopN 2 12 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts e Matrix e Filter e Capture The router base module supports the following groups e Alarm e Event RMON MIB Group Controls and Functions Several of the RMON groups in the MIB contain control and data tables Control tables contain control parameters that specify which statistics you want to access and collect You can view and change many entries in a control table Data tables contain statistics the agent collects usually you can only view entries in these tables The following sections describe the function of each group and the tables that each group defines Refer to RFC 1757 for the following information e A list of all the parameters that appear in a control table e The read write status of a control parameter e The default values for control parameters with read write status Alistof all the objects that appear in a data table Statistics Group The statistics group records data that the Ethernet DCM measures on network interfaces The Ethernet DCM creates one entry for each Ethernet interface it monitors and places the entry in the EtherStatsTable The EtherStatsTable also contains control parameters for this group History Group The history group contains a control and data collection function The control function manages
110. l Protocols gt Thresholds gt Global Enable Enable Disable Enables or disables the threshold feature on a router Select Enable to enable thresholds Select Disable to disable thresholds 1 3 6 1 4 1 18 3 3 2 6 1 1 A 8 117362 A Rev A Parameter Path Default Options Function Instructions MIB Object ID SNMP DCM BootP DHCP and RARP Parameter Descriptions Polling Interval Configuration Manager gt Protocols gt Global Protocols gt Thresholds gt Global 60 5 seconds minimum no maximum value Sets the time interval at which the agent polls the variable to determine whether that variable has reached the threshold Specify the number of seconds for the polling interval Remember that the more often the agent polls the variable the more memory it needs to manage the thresholds for this statistic 1 3 6 1 4 1 18 3 3 2 6 1 2 SNMP Threshold Interface Parameters Parameter Path Default Options Function Instructions MIB Object ID Use the following guidelines to configure SNMP threshold interface parameters in the Thresholds Interface Lists window Threshold Enable Configuration Manager gt Protocols gt Global Protocols gt Thresholds gt Thresholds Enable Enable Disable Turns the threshold for this variable on and off Select Enable if you want the agent to apply the threshold to this variable Select Disable if you want the agent to ignore the threshold for this var
111. le window opens This window lists all the IP interfaces that you have configured for BOOTP services on the router 5 Click on Forward I F The BOOTP Relay Agent Forwarding Table window opens 6 Select the address pair you want 7 Set the Enable Disable parameter Click on Help or see the parameter description on page A 23 8 Click on Apply 9 Click on Done You return to the Configuration Manager window 5 10 117362 A Rev A Customizing BootP Configuring an AN to Use EZ Install over a Frame Relay PVC If you intend to configure an AN router to use EZ Install over a frame relay PVC in group access mode you must create a BootP client interface table You do not need to create this table if you configured the frame relay PVC to operate in direct access mode The BootP client interface table allows you to specify and pair the IP address of a remote AN router with the DLCI of its frame relay group access PVC The upstream router is a booting router s next hop router By default the booting router s synchronous interfaces automatically try to get IP addresses from the upstream router This is the EZ Install process If a router using EZ Install gets its address from the upstream router and the upstream router s interface to that router is a frame relay group access PVC you must connect to the upstream router and create a BootP client interface table in addition to a BootP relay agent forwar
112. les using the Threshold Manager you can use the Fault Correlator tool to decode the traps that are sent to the network management station 117362 A Rev A 4 15 Configuring SNMP RMON BootP DHCP and RARP Services The Fault Correlator generates fault reports and calculates the current state of network objects and devices It generates fault reports by reducing network faults and traps into network problems Optivity automatically stores this information in the Optivity fault database When you boot the management station the system starts Fault Correlator Fault Correlator automatically assigns a health status to all network devices and builds an internal model of the network using information from the SuperAgent s domain database and incoming traps When a network device or other application receives a trap the Fault Correlator uses the network model to determine which devices are related to the event It determines the severity of the event by comparing the trap to the predefined fault and state rules For detailed information about using the Fault Correlator tool refer to Using Optivity Network Management System 6 0 LAN Applications 4 16 117362 A Rev A Chapter 5 Customizing BootP Topic Page Customizing BootP Relay Agent Parameters 5 2 Setting Up the Routing Path Between the BootP Server and the Routers 5 5 Specifying Interfaces to Receive and Relay BOOTREQUEST Packets
113. leting Trap Exceptions SISISISISISISISISISISISISISINSINSIS Disabling and Reenabling Thresholds Setting the Threshold Polling Interval Adding a Threshold Enabling and Disabling Thresholds for a Variable Specifying a Value for the Threshold Level Specifying the Severity Level for Event Messages Specifying Threshold Units SISISISISISISISISISISISISISISISISIS continued 3 2 117362 A Rev A Customizing SNMP Table 3 1 SNMP Configuration Tasks continued Determining When to Record Threshold Events Specifying Maximum Successive Alarms Specifying Polling Intervals for Held Variables SISINIS Specifying a Threshold Object Name Customizing SNMP Global Parameters You can enable SNMP services most easily by accepting all the default parameter values However you may want to change these values depending on your network requirements This chapter describes choices you can make to use SNMP most effectively on your network Disabling and Reenabling SNMP When you enable IP on an interface SNMP access is automatically enabled through that interface and default values are in effect for all SNMP parameters see Appendix B for parameter defaults Using the BCC To disable SNMP navigate to the SNMP prompt and enter disable For example the following command disables SNMP snmp disable To reenable SNMP naviga
114. llected in each entry of the RMON host control table The maximum limit depends on the amount of flash memory available in the DCM When the host control table reaches the maximum value the DCM deletes entries based on an LRU least recently used algorithm Recommended values based on DCM memory configurations are 2 to 4 MB 2048 3 MB 4096 16 MB 8128 To verify the number of hosts configured check the MIB object wfDCMmwRMONHost using the Site Manager Statistics tool 1 3 6 1 4 1 18 3 3 2 16 2 1 12 A 18 117362 A Rev A SNMP DCM BootP DHCP and RARP Parameter Descriptions Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID RMON Default Host Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM Enable Enable Disable Specifies whether or not to create the RMON host control table at every boot Some RMON network management applications expect the DCM to set up a host configuration Others enable and disable their own configurations during normal operations Note that the DCM allows only one instance of the host control table Select Enable to create the RMON host control table at the next and every subsequent reboot Select Disable to disable default creation of the RMON host control table at boot time 1 3 6 1 4 1 18 3 3 2 16 2 1 13 RMO
115. lp or see the parameter description on page A 9 6 Click on Done You return to the Configuration Manager window 117362 A Rev A 3 29 Configuring SNMP RMON BootP DHCP and RARP Services Specifying a Value for the Threshold Level You can specify an integer value that determines the level low medium or high at which you want the agent to generate a threshold exception event for a variable To specify a value for the threshold level complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose Global Protocols The Global Protocols menu opens 3 Choose Thresholds The Thresholds menu opens 4 Choose Thresholds The Thresholds Interface Lists window opens 5 Setthe following parameters Threshold Low Value Threshold Medium Value Threshold High Value Click on Help or see the parameter descriptions beginning on page A 10 6 Click on Done You return to the Configuration Manager window Specifying the Severity Level for Event Messages You can specify the severity level of the event message that the agent generates when a variable exceeds either a low medium or high threshold level You can specify one of three severity levels e Information allows low medium or high threshold exceptions to generate routine events th
116. mation about how to install configure and customize the RMON based tools for use with RMON see Using Optivity Analysis 7 0 Using Optivity LAN with RMON Optivity LAN offers two tools you can use to monitor network statistics collected by the Ethernet DCM Threshold Manager and Fault Correlator These tools allow you to set thresholds on integer based RMON objects and display trap information when the threshold is exceeded Threshold Manager Tool After you establish a level of performance that you consider normal for your network you can set up your system to generate responses whenever your network performance becomes abnormal As well as generating fault information you can set thresholds that initiate alarms whenever specified unfavorable network conditions occur Whenever a threshold is met or exceeded the specified event occurs and the alarm is triggered The Optivity application allows you to set thresholds specific to a slot or port With Threshold Manager you can perform the following network management tasks e Display thresholds e Add delete and modify thresholds e Define custom thresholds on any MIB object RMON only e Save and load thresholds to and from a file e Save thresholds to nonvolatile random access memory NVRAM RMON only For detailed information about installing the Threshold Manager tool see Using Optivity Analysis 7 0 Fault Correlator Tool After you set alarm thresholds on RMON variab
117. mber of the slot on which the trap will be received 117362 A Rev A 3 19 Configuring SNMP RMON BootP DHCP and RARP Services For example the following command line causes the SNMP agent to send to a network management station a trap for the IP protocol entity 2 on slot 2 snmp trap entity entity 2 slot 2 trap entity 2 2 Using Site Manager To specify a trap entity complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose SNMP The SNMP menu opens 4 Choose Trap Configuration The Trap Configuration menu opens 5 Choose Interfaces The Trap Configuration window opens 6 Select the slot for which you want to configure traps by clicking on the bar in the Slot box 7 Select an entity for which you want to The entity names appear in the Available configure traps If you want to configure Entities column a comprehensive list of traps for all entities running on a slot all protocols available regardless of the choose All Entities from the top of the platform or software you are using column 8 Click on Update The entity name moves to the Current Entities column indicating that you want to receive traps for this entity at the severity level you specified To move an entity from the column select the ent
118. meter settings for RARP Table B 12 RARP Interface Parameters Parameter Default Enable Disable Enable Table B 13 RARP Address Parameters Parameter Default MAC Address None IP Address 0 0 0 0 117362 A Rev A Default Parameter Settings A adding a manager 3 12 B Bay Networks Press xx BootP client interfaces table creating 5 11 configuring preferred servers 5 13 customizing 1 9 customizing relay agent parameters 5 2 to 5 5 deleting IP interface input and output address pair 5 9 disabling 5 2 enabling 5 2 enabling on an interface 1 8 enabling on router interfaces 5 5 filtering packets 5 17 overview 2 26 packet 2 26 to 2 29 relay agent 2 26 2 33 5 7 relay agent forwarding table 5 7 route forwarding 5 10 setting up routing paths between BootP server and router 5 5 specifying maximum number of hops 5 2 minimum seconds 5 2 relay mode 5 4 specifying IP interface input output address pair 5 8 BootP parameters defaults B 4 to B 5 117362 A Rev A Index C capture group 2 15 2 24 communities access privileges 2 4 names 2 4 configuring DHCP parameters 6 1 to 6 4 SNMP community parameters 3 8 trap exceptions 3 23 traps 3 19 to 3 25 configuring threshold polling interval 3 26 customer support programs xx Technical Solutions Centers xxi customizing BootP relay agent parameters 5 2 to 5 5 DCM parameters 4 2 to 4 1
119. meter to Specifying the Relay Mode for Packet DHCP or to BootP and DHCP This action Forwarding on page 5 4 for instructions allows you to select either DHCP or BootP and DHCP for the Pass Through Mode parameter in other windows 4 Click on Apply Edit the other parameters in this window Customizing BootP Relay Agent Parameters on page 5 2 for guidelines Customizing DHCP For information about modifying DHCP parameters refer to Chapter 6 117362 A Rev A Configuring SNMP RMON BootP DHCP and RARP Services Starting RARP Services Before you can enable RARP services you must enable IP on the router You can however enable IP and RARP services on the router simultaneously If you want to add RARP to a circuit on which you have already configured IP see Configuring and Managing Routers with Site Manager for information about adding a protocol When you enable RARP services you are required to configure only a few parameters The Configuration Manager supplies default values for the remaining parameters Enabling RARP on an Interface When you select either a link or net module connector or when you finish configuring a WAN circuit the Select Protocols window opens Note The Select Protocols window displays only those protocols that the circuit type supports To enable RARP on an interface complete the tasks in the following table Site Manager Procedure
120. mmunity Read Only Read Only Read Write Specifies the access privileges that the router grants to all members of this SNMP community Select Read Only to allow members of this community to only view configuration and performance information about this router Select Read Write to allow members of this community to not only view configuration and performance information about this router but also change the router s configuration 1 3 6 1 4 1 18 3 5 3 5 2 1 4 117362 A Rev A A 5 Configuring SNMP RMON BootP DHCP and RARP Services SNMP Manager Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Use the following guidelines to configure SNMP manager parameters in the SNMP Manager window Trap Port Configuration Manager gt Protocols gt IP gt SNMP gt Communities gt Community gt Managers gt Manager gt Add Manager Edit Manager 162 1 to 9999 Specifies the number of the port on the management station to which the agent sends traps The standard port number for trap messages is 162 however you may enter a different port number Be sure not to specify a port that another application uses 1 3 6 1 4 1 18 3 5 3 5 3 1 5 Trap Types Configuration Manager gt Protocols gt IP gt SNMP gt Communities gt Community gt Managers gt Manager gt Add Manager Edit Ma
121. mum polling interval of 5 seconds there is no maximum value The default polling interval is 60 seconds When setting a polling interval remember that the more often the agent polls the variable the more memory it needs to manage the thresholds for this statistic 117362 A Rev A 3 27 Configuring SNMP RMON BootP DHCP and RARP Services To set the threshold polling interval complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose Global Protocols The Global Protocols menu opens 3 Choose Thresholds The Thresholds menu opens Choose Global The Edit Thresholds Global Parameters window opens Set the Polling Interval parameter Click on Help or see the parameter description on page A 9 Click on OK You return to the Configuration Manager window Adding a Threshold To add a threshold complete the tasks in the following table Site Manager Procedure You do this System responds 1E In the Configuration Manager window choose Protocols The Protocols menu opens Choose Global Protocols The Global Protocols menu opens 3 Choose Thresholds The Thresholds menu opens 4 Choose Global The Edit Thresholds Global Parameters window opens Click on Add The Threshold Configuration
122. n parameters Refer to Chapter 2 for RMON concepts and the issues you should consider when using an Ethernet DCM for RMON Refer to Appendix B for DCMMW parameter defaults Ethernet DCM and RMON Summary The Ethernet DCM physically connects to BayStack router modules and to the ARN Ethernet expansion modules It contains a flash memory SIMM for its own boot image and configuration files The Ethernet DCM runs RMON agent software that e Gathers statistics by monitoring packets on an Ethernet segment e Stores the information according to the RMON MIB specification in compliance with RFC 1757 117362 A Rev A 4 1 Configuring SNMP RMON BootP DHCP and RARP Services To communicate with the RMON agent software on the DCM the router requires a software subsystem called DCM middleware DCMMW This software subsystem enables and configures an installed DCM Using Site Manager or the Technician Interface you configure the DCMMW to Enable the Ethernet DCM with a default configuration refer to Chapter 1 e Modify the Ethernet DCM configuration e Boot the Ethernet DCM e Disable the DCM Modifying the DCM Configuration You can modify the DCM configuration on an installed Ethernet DCM by changing the DCMMW configuration parameters Before you can change DCMMW configuration parameters for an installed Ethernet DCM you must temporarily disable the Ethernet DCM from collecting data When you finish changing the DCMMW con
123. nable Disable Reenable or disable the RARP interface you selected from the list of interfaces Select Enable to reenable a disabled interface Select Disable to disable an interface 1 3 6 1 4 1 18 3 5 3 9 3 1 2 RARP Address Parameters Parameter Path Default Options Function Instructions MIB Object ID Use the following guidelines to configure RARP address parameters in the RARP Addresses window MAC Address Configuration Manager gt Protocols gt IP gt Reverse ARP gt Map Table gt Add None Any valid MAC address Specifies the MAC address of a client that will use the RARP services of this router Enter the MAC address of a client 1 3 6 1 4 1 18 3 5 3 9 2 1 2 117362 A Rev A A 27 Configuring SNMP RMON BootP DHCP and RARP Services Parameter IP Address Path Configuration Manager gt Protocols gt IP gt Reverse ARP gt Map Table gt Add Default 0 0 0 0 Options Any valid IP address Function Specifies the corresponding IP address for the client with the MAC address you specified using the MAC Address parameter When the router receives a RARP request from the client the router assigns this IP address to the client and includes it in a response packet Instructions Enter the IP address corresponding to the value of the MAC Address parameter Do not accept the default value MIB Object ID 1 3 6 1 4 1 18 3 5 3 9 2 1 3 A 28 117362 A Rev A Appendix B Default Parameter S
124. nager Generic None Generic Specific All Specifies the type of trap the agent sends to this manager Select None to prohibit the agent from sending traps to this manager Select Generic to configure the agent to send the well defined SNMP traps cold start warm start and authentication failure traps to the manager The well defined cold start and warm start traps are automatically active in the SNMP agent however you must enable the Authentication Failure Traps global parameter for the agent to send such traps to this manager Select Specific to configure the agent software to send all enabled log event traps to this manager Select All to send cold start traps warm start traps and all enabled log event traps to this manager 1 3 6 1 4 1 18 3 5 3 5 3 1 6 A 6 117362 A Rev A SNMP DCM BootP DHCP and RARP Parameter Descriptions SNMP Trap Interface Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Use the following guidelines to configure SNMP trap interface parameters in the Add Trap window Entity Code Configuration Manager gt Protocols gt IP gt SNMP gt Trap Configuration gt Exceptions gt Add None Any valid entity code Specifies the entity code for the event for which you want to configure an exception Enter the entity code for the event for which you
125. narbestienen B 4 Table B 10 BootP Client Interface Address Parameters sssssssss B 4 Table B 11 BootP Preferred Server Configuration Parameters BS Table B 12 AARP Interface Paralelo e use ico tace be rece cine et poete a B 5 Table B 13 RARP Address Parameters iuis sette rta ak a Rak esit AREE uk aaa B 5 117362 A Rev A XV About This Guide If you are responsible for configuring Simple Network Management Protocol SNMP remote monitoring RMON Bootstrap Protocol BootP Dynamic Host Configuration Protocol DHCP and Reverse Address Resolution Protocol RARP on Bay Networks routers or BayStream platforms you need to read this guide You can now use the Bay Command Console BCC to configure SNMP services on a router you must use Site Manager to configure RMON BootP DHCP and RARP services In this guide you will find instructions for using both the BCC and Site Manager RARP parameter If you want to Go to Start SNMP RMON BootP DHCP or RARP on a router and get them Chapter 1 running with default settings for parameters Learn about the SNMP RMON BootP DHCP or RARP protocols and Chapter 2 special aspects of the Bay Networks implementation of these protocols Change default settings for SNMP parameters Chapter 3 Configure and manage the data collection module DCM for RMON Chapter 4 Change the de
126. nd RARP Parameter Descriptions Threshold Medium Value Configuration Manager gt Protocols gt Global Protocols gt Thresholds gt Thresholds 0 Any integer value Sets the value of the medium threshold for this variable Specify the level at which you want the agent to generate a medium threshold exception event 1 3 6 1 4 1 18 3 3 2 6 2 1 7 Threshold Medium Event Level Configuration Manager gt Protocols gt Global Protocols gt Thresholds gt Thresholds Info Info Warning Debug Specifies the severity level of the event message the agent generates when a variable exceeds the medium threshold Select Info if you want medium threshold exceptions to generate routine events that require no action Select Warning if you want medium threshold exceptions to generate events that indicate an unexpected situation occurred Select Debug if you want medium threshold exceptions to generate events you use to solve network problems 1 3 6 1 4 1 18 3 3 2 6 2 1 8 117362 A Rev A Configuring SNMP RMON BootP DHCP and RARP Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Threshold High Value Configuration Manager gt Protocols gt Global Protocols gt Thresholds gt Thresholds 0 Any integer value Sets the value of the high threshold for this variable Specify the level at w
127. ns choose Protocols 2 Choose IP The IP menu opens 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens This window lists all the IP interfaces that you have configured for BOOTP services on the router 5 Setthe Hops parameter Click on Help or see the parameter description on page A 20 6 Click on Apply 7 Click on Done You return to the Configuration Manager window Specifying a Minimum Timeout Value By default the router immediately forwards BOOTREQUEST packets to the destination address in the BootP relay forwarding table You can determine the amount of time in seconds that the router waits before forwarding a BOOTREQUEST packet out an interface by assigning a value to the Timeout Secs parameter If the value in the seconds field of a BOOTREQUEST packet is less than the value you specified for the Timeout Secs parameter you configured on the interface the router drops the packet The default value is 0 seconds To change the default specify a value from 1 to 65535 seconds 117362 A Rev A 5 3 Configuring SNMP RMON BootP DHCP and RARP Services To specify a minimum timeout value complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The
128. nt and the server are on the same network The client transmits a BOOTREQUEST packet to the IP broadcast address 255 255 255 255 The server sends a BOOTREPLY packet to the client Depending on the server s implementation the server addresses the packet to either the broadcast or the client s IP address Client broadcasts a request to boot from a remote server BOOTREQUEST 4 Server sends acknowledgment to the client BOOTREPLY Client Server SNM0002A Figure 2 4 BootP Client and Server on the Same Physical Network If however the client and the server are on different physical networks a BootP relay agent also known as a BootP gateway must forward BootP packets to their correct destinations When you configure a Bay Networks router for BootP services the router acts as a BootP relay agent Figure 2 5 illustrates how BootP works when the client and the server are on different physical networks 2 26 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts Server 1 Client broadcasts 2 BOOTP relay H a request to boot from a agent transmits remote server BOOTREQUEST irii Client BOOTREQUEST packet to servers BEE ES on other networks gt gt E n s lt 4 BOOTP relay E 8 Server transmits age
129. nt transmits BOOTREPLY BOOTREPLY E packet to BOOTP packet to client Router BOOTP relay agent relay agent Figure 2 5 BootP Client and Server on Different Physical Networks The client transmits a BOOTREQUEST packet to the IP broadcast address 255 255 255 255 The router receives the BOOTREQUEST packet at an interface that you configured to receive BOOTREQUEST packets an input interface If the BOOTREQUEST packet has an address other than 255 255 255 255 the router drops the packet Figure 2 6 shows the fields in the BOOTREQUEST and BOOTREPLY packets 117362 A Rev A 2 27 Configuring SNMP RMON BootP DHCP and RARP Services i Hardware address Operation 1 Hardware type 1 length 1 Hops 1 Transaction ID 4 Seconds 2 Flags 2 Client IP address 4 Your IP address 4 Server IP address 4 Gateway IP address 16 Client hardware address 16 Server name 64 File name 128 Vendor specific area 64 The number in parentheses indicates the number of octets in each field SNMO0001A Figure 2 6 BOOTREQUEST and BOOTREPLY Fields The packet relay process uses these fields as follows 1 When a router interface receives a BOOTREQUEST packet the router examines the seconds and hops fields in the packet and compares these values to BootP parameters you configured on that interface The seconds field contains the minimum number of s
130. ntervals 1 Threshold Label ASN 1 OID DCM Global Parameters Table B 7 lists the Site Manager default parameter settings for the DCM Table B 7 DCM Global Parameters Parameter Default Enable Disable Enable Boot Option Local Image Name None Image Save Mode Save Configuration Mode Local Save Configuration Info Save RMON Max Host 500 RMON Default Host Enable RMON Default Matrix Enable 117362 A Rev A Configuring SNMP RMON BootP DHCP and RARP Services BootP and DHCP Parameters Tables B 8 to B 11 list the Site Manager default parameter settings for BootP and DHCP Table B 8 BootP Relay Agent Interface Parameters Parameter Default Enable Disable Enable Hops 4 Timeout Secs 0 seconds Pass Through Mode BOOTP Table B 9 BootP Address Parameters Parameter Default Input IP Address None Output IP Address None Enable Disable Enable Pass Through Mode BOOTP Table B 10 BootP Client Interface Address Parameters Parameter Default IP Address None DLCI Number None B 4 117362 A Rev A Table B 11 BootP Preferred Server Configuration Parameters Parameter Default Relay Agent IP Address None Target Server IP Address None Enable Disable Enable Target Name None Pass Through Mode BOOTP RARP Parameters Tables B 12 and B 13 list the Site Manager default para
131. nts that usually require no action 2 Warning Indicates that a service acted in an unexpected manner 4 Fault Indicates a major service disruption usually caused by a 8 configuration network or hardware problem The entities involved keep restarting until the problem is resolved continued 117362 A Rev A 2 5 Configuring SNMP RMON BootP DHCP and RARP Services Table 2 1 Severity Levels Severity Description Code Trace Indicates information about each packet that traversed the 10 network Bay Networks recommends viewing this type of trap message only when diagnosing network problems Debug Indicates information that Bay Networks Customer Support 1 uses These messages are not documented See Event Messages for Routers for detailed information about entities and severity levels SNMP Trap Format Some third party network management applications such as NetExpert OpenView and SunNet allow you to trigger a desired operation when a specific SNMP trap is received This section describes the SNMP trap format The router platform transmits a Bay Networks event log trap as a 32 bit value as follows e Octets 1 and 2 the most significant 16 bits of the specific trap ID contain values of 1 and 0 respectively to identify a Bay Networks event log trap e Octet 3 of the specific trap ID contains a code that identifies the software entity that generated the trap e Octet 4 of the specific
132. nued configure traps by clicking on the bar in the slot box You do this System responds 3 Choose SNMP The SNMP menu opens 4 Choose Trap Configuration The Trap Configuration menu opens 5 Choose Interfaces The Trap Configuration window opens 6 Select the slot for which you want to Select the severity level at which you want to receive traps by clicking on the Events box at the bottom of the window Refer to Chapter 2 for a definition of severity levels Click on Update The entity name moves to the Current Entities column indicating that you want to receive traps for this entity at the severity level you specified To move an entity from the column select the entity name and then click on Remove Repeat steps 6 through 8 for other slots you want to configure 10 Click on Save You return to the Configuration Manager window Disabling a Trap Entity You can prevent the SMNP agent from sending a specific trap entity to a network management station regardless of slot by disabling the trap entity Using the BCC Trap entities are enabled by default To prevent the SMNP agent from sending a specific trap entity to a network management station regardless of slot enter the following command at the trap entity specific prompt disable 3 22 117362 A Rev A Customizing SNMP For example the following command prevents the SNMP manager from sending traps for enti
133. odule DCM window Expansion Module DCM opens or the Edit Expansion Module DCM Parameters window opens 5 Setthe Image Save Mode parameter Click on Help or see the parameter description on page A 17 6 Click on OK You return to the Configuration Manager window Specifying the Configuration Mode The configuration mode allows you to specify whether to use configuration information in the DCM flash memory or in the DCM s shared memory space DRAM To use the default configuration information in the DCM local flash memory set the Configuration Mode parameter to Local To use the configuration information in the DCM DRAM written by DCMMW from the BayStack router s file system set the Configuration Mode parameter to Shared Memory 117362 A Rev A 4 5 Configuring SNMP RMON BootP DHCP and RARP Services To specify the configuration mode complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Platform menu opens choose Platform 2 Choose DCM 11 0 and later The DCM 11 0 and Later menu opens 3 Choose Global The Global menu opens 4 Choose Base Module DCM or The Edit Base Module DCM Parameters Expansion Module DCM window opens or the Edit Expansion Module DCM Parameters window opens 5 Setthe Configuration Mode parameter Click on Help or see the parameter description on page A 17
134. of a link module on the router slot number is the number of the slot on which the link module is located connector number is the number of a connector on the link module For example the following command configures an Ethernet interface on slot 2 connector 2 box ethernet slot 2 connector 2 ethernet 2 2 Step 2 Configuring an IP Interface To configure an IP interface on a physical interface navigate to the prompt for the physical interface and enter ip address address mask mask address and mask are a valid IP address and its associated mask expressed in either dotted decimal notation or in bit notation For example the following command configures IP interface 2 2 2 2 255 0 0 0 on an Ethernet physical interface on slot 2 connector 2 ethernet 2 2 ip address 2 2 2 2 mask 255 0 0 0 ip 2 2 2 2 255 0 0 0 An IP interface is now configured on the Ethernet interface with default values for all interface parameters When you configure an IP interface the BCC also configures IP globally on the router with default values for all IP global parameters You can customize IP by modifying IP global and interface parameters as described in Configuring IP Services 1 4 117362 A Rev A Starting SNMP RMON BootP DHCP and RARP Services Starting SNMP Services You can use the BCC command line interface or the Site Manager graphical user interface to start SNMP on the router using default values for all parameters
135. of this document or other Bay Networks publications order by part number from Bay Networks Press at the following numbers e Phone U S Canada 888 422 9773 e Phone International 510 490 4752 e FAX U S Canada and International 510 498 2609 The Bay Networks Press catalog is available on the World Wide Web at support baynetworks com Library GenMisc Bay Networks publications are available on the World Wide Web at support baynetworks com Library tpubs Bay Networks Customer Service You can purchase a support contract from your Bay Networks distributor or authorized reseller or directly from Bay Networks Services For information about or to purchase a Bay Networks service contract either call your local Bay Networks field sales office or one of the following numbers Region Telephone number Fax number United States and 800 2LANWAN then enter Express 978 916 3514 Canada Routing Code ERC 290 when prompted to purchase or renew a service contract 978 916 8880 direct Europe 33 4 92 96 69 66 33 4 92 96 69 96 Asia Pacific 61 2 9927 8888 61 2 9927 8899 Latin America 561 988 7661 561 988 7550 Information about customer service 1s also available on the World Wide Web at support baynetworks com XX 117362 A Rev A How to Get Help About This Guide If you purchased a service contract for your Bay Networks product from a distributor or authorized reseller contact the technical suppo
136. on gt Exceptions gt Add identifies the Add button in the Traps Exceptions Lists window italic text Indicates variable values in command syntax descriptions new terms file and directory names and book titles quotation marks Indicate the title of a chapter or section within a book separator gt Separates menu and option names in instructions Example Protocols gt IP gt SNMP identifies the SNMP option in the IP menu xviii 117362 A Rev A Acronyms ASN 1 BCC BootP CMIP DCM DCMMW DHCP DLCI DRAM FDDI IP LRU MAC MIB NVRAM PDU PVC RARP RIP RMON SNMP TFTP UDP WAN About This Guide abstract syntax notation Bay Command Console Bootstrap Protocol Common Management Information Protocol data collection module data collection module middleware Dynamic Host Configuration Protocol Data Link Control Interface dynamic random access memory Fiber Distributed Data Interface Internet Protocol least recently used media access control management information base nonvolatile random access memory Protocol Data Unit permanent virtual circuit Reverse Address Resolution Protocol Routing Information Protocol remote monitoring Simple Network Management Protocol Trivial File Transfer Protocol User Datagram Protocol wide area network 117362 A Rev A xix Configuring SNMP RMON BootP DHCP and RARP Services Ordering Bay Networks Publications To purchase additional copies
137. on Manager window Deleting Trap Exceptions You can delete a trap exception by specifying the entity number and the event code for the trap event Using the BCC To delete a trap exception navigate to the SNMP prompt and enter trap event entity entity number event event code entity number is the code assigned to the entity issuing the event that uniquely identifies an event event code is a unique code assigned to the event Together the entity number and event code uniquely identify a router event For example the following command causes the SNMP agent to delete a trap for IP protocol entity 2 whose event code is 3 snmp trap event entity 2 event 3 trap event 2 3 117362 A Rev A 3 25 Configuring SNMP RMON BootP DHCP and RARP Services Using Site Manager To delete a trap exception complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose SNMP The SNMP menu opens 4 Choose Trap Configuration The Trap Configuration menu opens 5 Choose Exceptions The Trap Exceptions List window opens 6 Select the trap for which you want to delete the exception 7 Click on Delete You return to the Configuration Manager window Configuring Thresholds You cannot configure thresholds using the BCC You c
138. onds 1 Inthe Configuration Manager window The Platform menu opens choose Platform 2 Choose DCM 11 0 and later The DCM 11 0 and Later menu opens 3 Choose Delete DCM The Delete DCM menu opens 4 Choose one of the following options Site Manager displays a confirmation Base Module DCM only prompt Expansion Module DCM only All DCMs 5 Click on OK Base Module DCM only removes the DCMMW from the base module on the current platform Expansion Module DCM only removes the DCMMW from the ARN Ethernet expansion module All DCMs removes the DCMMW from all modules on the current platform The deletion completely deactivates the DCM s After deleting the Ethernet DCM configuration you can reactivate the Ethernet DCM by selecting Platform gt DCM 11 0 and later gt Create Base Module DCM to re create the DCMMW record 117362 A Rev A 4 11 Configuring SNMP RMON BootP DHCP and RARP Services Managing a DCM Using the Technician Interface You can use the Technician Interface commands to Download a new Ethernet DCM software image Refer to Upgrading Routers from Version 7 11 xx to Version 12 00 for information about using the dcmload script Display or modify DCMMW configuration parameters See Using Technician Interface Scripts for information about accessing the DCM MIB using set get and commit commands with the MIB object ID Caution The Technician Interface does not verify that the value
139. onfiguration Manager deletes BootP from all interfaces on the router 5 18 117362 A Rev A Chapter 6 Customizing DHCP Topic Page Customizing DHCP Parameters 6 1 Deleting DHCP from an IP Interface 6 3 Deleting DHCP Globally 6 4 This chapter describes how to customize DHCP services It assumes you have configured an IP interface using the default parameters and enabled DHCP as described in Chapter 1 and that you understand the DHCP concepts in Chapter 2 When you enable DHCP all default parameter values are automatically enabled on that interface refer to Appendix B for default parameters You may want to change these default values depending on your network requirements This chapter describes choices you can make to use DHCP most effectively on your network Customizing DHCP Parameters After you have enabled DHCP services on a router see Chapter 1 you can customize the router software for your specific requirements Use the remaining sections in this chapter as a guide 117362 A Rev A 6 1 Configuring SNMP RMON BootP DHCP and RARP Services Specifying Interfaces to Receive and Relay DHCP Packets You must specify a forwarding route for DHCP packets by defining a relationship between an interface you configure to receive DHCP packets and an interface you want to transmit DHCP packets When you define this type of relationship the interface pair appears in the BootP rela
140. ontrol objects allowing you to capture real time information across the entire network The RMON standard is an SNMP MIB definition described in RFC 1757 formerly 1271 for Ethernet 117362 A Rev A 2 9 Configuring SNMP RMON BootP DHCP and RARP Services The RMON MIB provides a standard method to monitor the basic operations of the Ethernet providing interoperability between SNMP management stations and monitoring agents RMON also provides a powerful alarm and event mechanism for setting thresholds and for notifying you of changes in network behavior You can use RMON to analyze and monitor network traffic data within remote LAN segments from a central location This allows you to detect isolate diagnose and report potential and actual network problems before they escalate to crisis situations For example the Ethernet DCM can identify the hosts on a network that generate the most traffic or errors RMON allows you to set up automatic histories which the RMON agent collects over a period of time providing trending data on such basic statistics as utilization collisions and so forth Using a network management application such as Optivity LAN or Optivity Analysis you can retrieve histories to understand network usage patterns Because RMON automates this data collection and provides better data to the planning process the process is easier and the outcome more accurate How RMON Works A typical RMON configuration consi
141. oot the Ethernet DCM Some RMON network management applications expect the Ethernet DCM to set up a host configuration Others enable and disable their own configurations during normal operations You can disable default creation of the RMON host control table at boot time by setting the RMON Default Host parameter to Disable To re create the RMON host control table at the next and every subsequent reboot set the RMON Default Host parameter to Enable Note that the DCM allows only one instance of the host control table To disable the RMON host control table complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Platform menu opens choose Platform 2 Choose DCM 11 0 and later The DCM 11 0 and Later menu opens 3 Choose Global The Global menu opens or the Edit Expansion Module DCM Parameters window opens 4 Choose Base Module DCM or The Edit Base Module DCM Parameters Expansion Module DCM window opens continued 4 8 117362 A Rev A Customizing a DCM for RMON Site Manager Procedure continued You do this System responds 5 Set the RMON Default Host parameter Click on Help or see the parameter description on page A 19 6 Click on OK You return to the Configuration Manager window Disabling the RMON Default Matrix Table Be default the RMON Default Matrix parameter is
142. or TimeTick Event Group The event group allows for the generation of an SNMP trap the generation of a log entry or both for any event you choose An event can occur when the sample variable exceeds the alarm threshold or a channel match event generated on an Ethernet DCM Traps can be delivered by the RMON agent to multiple management stations For information on setting trap destinations see Chapter 3 You can set up events to either record the monitoring information or to notify the network management station The event group includes an event table and a log table The event table defines the notification that takes place when an event is triggered One form of notification is to write an entry in the log table Each entry in the event table identifies an event that can be triggered and indicates an action such as writing a log entry to the log table or sending an SNMP trap to the network management station The event can trigger any of the following actions e The system sends an SNMP trap to the network management station The management station is notified immediately The management station determines how to react to the SNMP trap e The system logs the event in the log table in the agent system e The management station can retrieve the information stored in the log table for further analysis For example the information collected can be used to select proper threshold values e The system sends an SNMP trap and logs th
143. ou to create only one matrix configuration Be sure to set the RMON Default Matrix parameter according to the expectations of the RMON network management application The matrix configuration requires 212 bytes The matrix data requires approximately 178 bytes of memory per source destination pair the Ethernet DCM detects on a segment 117362 A Rev A 2 23 Configuring SNMP RMON BootP DHCP and RARP Services Filter and Capture Groups 5 Caution The memory you need for a filter capture configuration and for storing captured packets can easily exhaust all the available memory on an Ethernet DCM particularly if the filters are not selective You must create filter and capture configurations through your RMON network management application You can create as many filters and capture buffers as memory permits up to the RMON limit of 65 535 configurations Memory requirements vary greatly according to the size and number of the filters and the size of the capture buffer In most cases you need 3 to 5 KB of memory for the filter and capture configuration The size of the capture buffer determines the amount of memory you need for the data You can request the largest buffer size available by specifying a buffer size of 1 through your RMON network management application When you specify 1 for the capture buffer size the agent attempts to allocate a default buffer depending on the DRAM in the Ethernet DCM Table 2 7
144. p T ENET udd ESO Em TREN 2 22 FostopN GRUD e T 2 23 PONE OI oaii ood udi Hau Nb usb ic c onu Fa 2 23 iiis anc em aaaea E OE aE 2 24 lam and Eveni Ilis eccessivo eds na a 2 25 BootP Relay Agent Overview denis on Stes iaeiiai semis aitia eas 2 26 Rl E a Me 2 30 Acquiring a New IP Address and New Configuration Parameters 2 31 Acquiring the Same IP Address Again seesssessss TET 2 35 RARE OVENI N TE T 2 36 Chapter 3 Customizing SNMP Summary of SNMP Configuration Tasks Using the BCC and Site Manager icio census nen epa nre nan became Rena axe kk se Dx dra 3 2 Customizing SNMP Global PaliBlblg sieeaeec nir e hence be tients 3 3 Disabling and Reenabling SNMP use dei ane I EREEHRA EREERERA YE CR EFE Crea dU VE 3 3 Enabling and Disabling SNMP Lock Mechanism m 3 4 pscing a Look Ju ee E uooiiaii e riens tact esce ta ievcceeue petes biiclcce teu Pi esemi c ust R bac 3 6 Eoeciihag x Looc DMT CIE VAR idporta um da de 3 6 Enabling and Disabling Authentication Failure Traps dod rr TRUE 3 7 Specifying the Type of Service for the SNMP Packet c cccceeeseseeeesteeeeeneeeee 3 9 SIS SNMP COMMS NE DS 3 9 Specifying an SNMP Community NAME os cists ikcceeseiaistesardaconensaceseke tamesiatelenicdauscoeiace 3 9 Specifying Community Access Privileges sssssseseeenemeenee 3 10 Deleting an SNMP Communi
145. pens 3 Choose Thresholds The Thresholds menu opens 4 Choose Thresholds The Thresholds Interface Lists window opens 5 Setthe Threshold Action parameter Click on Help or see the parameter description on page A 13 6 Click on Done You return to the Configuration Manager window Specifying Maximum Successive Alarms A maximum successive alarm represents two or more polling periods when the agent generates an alarm as a result of an exception at the same threshold level You can specify an integer to determine the maximum number of successive alarms that the agent generates for a variable When the agent exceeds the maximum number of alarms it marks the threshold as held The agent generates no more alarms until the variable either crosses the threshold at a different level or crosses no threshold for the number of polling intervals equal to the value of the Threshold HoldDown Intervals parameter 117362 A Rev A 3 33 Configuring SNMP RMON BootP DHCP and RARP Services To specify the maximum number of successive alarms complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose Global Protocols The Global Protocols menu opens 3 Choose Thresholds The Thresholds menu opens 4 Choose Thresholds The Thresholds Interface Lists window opens 5 Set
146. plementation of the RMON MIB groups Table 4 1 summarizes the RMON based tools and lists the corresponding RMON MIB groups that they use to collect and present traffic Statistics Table 4 1 Optivity Analysis RMON Based Tools RMON Tool Name Purpose Possible Uses Special Features MIB Group Segment Display and record Plan bandwidth intensive Ability to view Ethernet Statistics information from the tasks multiple sessions Statistics RMON statistics group This information Baseline individual Automatic utilization includes raw packet segment traffic calculation based counts and bandwidth characteristics on available utilization bandwidth History collection Host Statistics Display traffic Determine which hosts Filter for viewing Host Table summaries for each host are generating specific TopN hosts and on a selected segment types of traffic Host TopN Link packet capture Provide a Host TopN filter that allows you to concentrate on only the most active hosts on the network Host Matrix Present statistics on Isolate sources of Sparse matrix Matrix conversations between broadcasts errors and so display host pairs on a selected forth segment Quick view of Locate work groups for graphic coding of segmentation information Level 3 support for conversations by protocol continued 117362 A Rev A 4 13 Configuring SNMP RMON BootP DHCP and RARP Services Table 4 1 O
147. pter describes the concepts behind SNMP RMON BootP DHCP and RARP services and how we implement them in Bay Networks routers You can use this information to decide how to customize SNMP RMON BootP DHCP and RARP parameters for your system SNMP Overview SNMP is a simple request response protocol that communicates management information between two types of SNMP software entities SNMP applications also called SNMP managers and SNMP agents 117362 A Rev A 24 Configuring SNMP RMON BootP DHCP and RARP Services SNMP applications contain manager software that runs on a network management station also known as an SNMP client such as a PC or a workstation The manager software implements the protocols used to exchange data with SNMP agents SNMP applications issue queries to gather information about the status configuration and performance of external network devices called network elements in SNMP terminology Network elements contain an agent and perform the network management function that the network management stations request The Bay Networks Site Manager software is an example of a network management station and the Bay Networks Backbone Node BN router is an example of a network element The SNMP agent is a software entity that responds to information and action request messages SNMP Set and Get requests sent by a network management station your Site Manager workstation The messages exchanged between mana
148. ptivity Analysis RMON Based Tools continued RMON Tool Name Purpose Possible Uses Special Features MIB Group Filter Capture Define channels and Capture packets for Flexible channel Filter and filters analysis of a specific and filter editors Packet problem or to provide Capture Activate channels for selective traffic statistics Real time display of captures counters Automatic capture activation from other tools DecodeMan Decode and display Troubleshoot problems by Full seven layer Filter and captured packet pinpointing the source decode Packet content Capture Quick search index Quick configuration of RMON probes for standalone operation Alarm Editor View thresholds for Modify individual Editing of individual Ancillary to segment normative models thresholds and Alarm and hysteresis values Events Run Learning Tool Run Learning Tool with interactively locally local configuration for specific segment Alarm Monitor Continually monitor all Proactive maintenance Monitors all Alarms and segments segments at once Events Quick filter by segment or alarm type Link to Filter Capture and DecodeMan Learning Tool Automatically learn Create normative model Learns automatically Ancillary to normal network comprising threshold Alarms and behavior on all values for all segments Flexible sample Events segments Builds model statistically 117362 A Rev A Customizing a DCM for RMON For detailed infor
149. rame relay PVC identification number whose destination is the remote AN that will boot using EZ Install Use the DLCI number assigned by your frame relay service provider The frame relay network uses the DLCI number to direct data flow 5 12 117362 A Rev A Customizing BootP To specify the DLCI number complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens 5 Click on Client I F The BOOTP Client Interface window opens 6 Click on Add The BOOTP Client Interface Address window opens 7 Setthe DLCI Number parameter Click on Help or see the parameter description on page A 24 8 Click on OK 9 Click on Done You return to the Configuration Manager window Specifying Servers for BootP Services You can specify a forwarding route for BOOTREQUEST packets by defining a relationship between an input interface and a BootP server By defining such a relationship you can Improve the efficiency of BOOTREQUEST packet relay e Transmit BOOTREQUEST packets through unnumbered output interfaces Configuring BootP Preferred Servers You can configure a BootP prefer
150. receives information from a good packet it places data in both the matrixSDTable and the matrixDS Table Filter Group The filter group specifies the types of packets the Ethernet DCM can capture Filter control parameters such as the minimum length of those packets appear in the filterTable Associated with each filter is a channel a specific path along which data flows Control parameters in the channelTable define how and where the filtered packets flow 2 14 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts Capture Group The capture group enables the capture of packets that satisfy the filter group control parameters for a particular channel Control parameters in the bufferControlTable specify how to transfer data from the channelTable to the captureBufferTable For example you can specify the maximum number of octets from each packet that the group can store in the captureBufferTable To use the capture group you must set up the filter group Alarm Group The alarm group allows you to set an alarm threshold and a sampling interval to enable the RMON agent to generate alarms on any network segment it monitors Alarm thresholds can be based on absolute or delta values so that you can be notified of rapid spikes or drops in a monitored value Each alarm is linked to an event in the event group An event defines an action that triggers when the alarm threshold is exceeded The alarm group periodically takes st
151. red b to copy the Software solely for backup purposes in support of authorized use of the Software and c to use and copy the associated user manual solely in support of authorized use of the Software by Licensee This license applies to the Software only and does not extend to Bay Networks Agent software or other Bay Networks software products Bay Networks Agent software or other Bay Networks software products are licensed for use under the terms of the applicable Bay Networks Inc Software License Agreement that accompanies such software and upon payment by the end user of the applicable license fees for such software 2 Restrictions on use reservation of rights The Software and user manuals are protected under copyright laws Bay Networks and or its licensors retain all title and ownership in both the Software and user manuals including any revisions made by Bay Networks or its licensors The copyright notice must be reproduced and included with any copy of any portion of the Software or user manuals Licensee may not modify translate decompile disassemble use for any competitive analysis reverse engineer distribute or create derivative works from the Software or user manuals or any copy in whole or in part Except as expressly provided in this Agreement Licensee may not copy or transfer the Software or user manuals in whole or in part The Software and user manuals embody Bay Networks and its licensors confidential and proprietary
152. red server by specifying the IP address of the relay agent on the router and the IP address of the target server The router can then unicast a BOOTREQUEST packet through normal IP services to that server 117362 A Rev A 5 13 Configuring SNMP RMON BootP DHCP and RARP Services Specifying the Relay Agent IP Address You must specify the IP address of a numbered network interface that you want to receive BOOTREQUEST or DHCP packets from clients You can then configure this IP address on the router if you have not already done so Do not specify an unnumbered interface for this parameter To specify the relay agent IP address complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens 5 Click on Pref Serv The BOOTP Relay Agent Preferred Server Table opens 6 Click on Add The BOOTP Preferred Server Configuration window opens 7 Setthe Relay Agent IP Address parameter Click on Help or see the parameter description on page A 25 8 Click on OK 9 Click on Done You return to the Configuration Manager window Specifying the Target Server IP Address After you specify the relay agent
153. riable reaches one of the three thresholds 1 3 6 1 4 1 18 3 3 2 6 2 1 12 Threshold Action Configuration Manager gt Protocols gt Global Protocols gt Thresholds gt Thresholds Greaterthan Greaterthan Lessthan Specifies when the agent generates a threshold event Select Greaterthan if you want to record threshold events when the value of the variable is greater than the threshold specified Select Lessthan if you want to record threshold events when the value of the variable is less than the threshold specified 1 3 6 1 4 1 18 3 3 2 6 2 1 13 117362 A Rev A Configuring SNMP RMON BootP DHCP and RARP Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Threshold Max Successive Alarms Configuration Manager gt Protocols gt Global Protocols gt Thresholds gt Thresholds 5 Any integer value Specifies the maximum number of successive alarms that the agent generates for this variable A successive alarm represents two or more polling periods when the agent generates an alarm as a result of an exception at the same threshold level Specify the maximum number of successive alarms When the agent exceeds the maximum number of alarms it marks the threshold as held The agent generates no more alarms until the variable either crosses the threshold at a different level or crosses no thres
154. rmining When to Record Threshold Events 0 cccccccceseseeeeeeeeetesaeeeeeeeeees 3 32 Specifying Maximum Successive Alarms iioii nnam 3 33 Specifying Polling Intervals for Held Variables sese 3 34 Specifying a Threshold Object Name m Bisras inteso id em bre qd 9 35 Chapter 4 Customizing a DCM for RMON Ethemet DONI and RMON SUITIBEN aiissciiudexexctXt n dk ideni bam dk rc dla Recien 4 1 Modiiving The DOCM Conftgu all cae iani ies ia pate Fn kei e phi saec OAT 4 2 Specifying the DCM Boot Image Name ccccccsseccssscessseceeseeesesaeesseeeesssaeessseeeess 4 3 Specifying the Boot Option ET ET Tt 4 4 Samd the Boo rr Ng Ree 4 5 Specifying the Configuration MOBS 2 iisiad edita tette cxi e dud eet 4 5 Saving the Configuration Information esses oveta Cates 4 6 Specifying the Maximum Number of RMON Muss keep bum epa t 4 7 Disabling the RMON Host Control Table 1 eee agna tena cic a 4 8 Disabling the RMON Default Matrix Tala 1 cci reete rect eran ec ecade 4 9 Hisbboling the Eihermet DOM 2a o n adco a ora Ro eccega Gal cp Paco anaes 4 10 Deleting the Ethernet DCM Software Subsystem bi EA EAT Signe see 4 11 viii 117362 A Rev A Managing a DCM Using the Technician Interface cccccsessseceesseseeeeesssenseesessseaees 4 12 Viewing and Analyzing Statistics Using Optivity sse 4 12 U
155. rs n on other networks lt 4 BOOTP relay El zl 3 Servers transmit agent transmits DHCPOFFER DHCPOFFER packets to BOOTP packets to client Router BOOTP relay agent relay agent SNM0005A Figure 2 7 Identifying DHCP Servers 2 32 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts To identify DHCP servers the client broadcasts a DHCPDISCOVER packet Figure 2 8 shows the fields ina DHCP packet The packet relay process uses these fields as follows 1 A BootP relay agent receives the packet and if it accepts the packet transmits it to DHCP servers on other networks Hardware address Operation 1 Hardware type 1 length 1 Hops 1 Transaction ID 4 Seconds 2 Flags 2 Client IP address 4 Your IP address 4 Server IP address 4 Gateway IP address 16 Client hardware address 16 Server name 64 File name 128 Options 312 The number in parentheses indicates the number of octets in each field SNM0004A Figure 2 8 Fields in a DHCP Packet 2 DHCP servers may respond with a DHCPOFFER packet that includes an available IP address in the your IP address field When a DHCP server offers an IP address that address is temporarily unavailable to other clients If the client does not accept or reject the address within a certain period of time the serv
156. rt staff for that distributor or reseller for assistance If you purchased a Bay Networks service program call one of the following Bay Networks Technical Solutions Centers Technical Solutions Center Telephone number Fax number Billerica MA 800 2LANWAN 978 916 3514 Santa Clara CA 800 2LANWAN 408 495 1188 Valbonne France 33 4 92 96 69 68 33 4 92 96 69 98 Sydney Australia 61 2 9927 8800 61 2 9927 881 1 Tokyo Japan 81 3 5402 0180 81 3 5402 0173 117362 A Rev A xxi Chapter 1 Starting SNMP RMON BootP DHCP and RARP Services Topic Page Starting Configuration Tools 1 2 Configuring IP for Global Protocols 13 Starting SNMP Services 15 Starting RMON 1 6 Starting BootP Services 1 9 Starting DHCP Services 1 10 Starting RARP Services 1 12 This chapter describes how to create a basic SNMP BootP DHCP and RARP configuration by specifying values for required parameters only and accepting default values for all other parameters of these services It also describes how to start RMON remote monitoring for data collection by enabling the Ethernet data collection module DCM with a default configuration For detailed background information about these protocols and how they work see Chapter 2 For information on how to customize these protocols by changing their default values see Chapters 3 to 7 For
157. rvices You define the router s MAC address to IP address RARP mapping table by specifying the MAC addresses of clients and the corresponding IP addresses that the RARP server assigns to those clients 7 2 117362 A Rev A Customizing RARP Specifying the Client s MAC Address You must specify the MAC address of a client that will use the RARP services of this router The client will include the MAC address you specify here in RARP broadcasts to the router To specify the client s MAC address complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose Reverse ARP The Reverse ARP menu opens 4 Choose Map Table The RARP Map Table window opens 5 Click on Add The RARP Addresses window opens 6 Setthe MAC Address parameter Click on Help or see the parameter description on page A 27 7 Click on OK You return to the Configuration Manager window 117362 A Rev A 7 3 Configuring SNMP RMON BootP DHCP and RARP Services Specifying the Client s IP Address You must specify the IP address corresponding to the value of the MAC Address parameter you specify Do not accept the default value When the router receives a RARP request from the client it assigns this IP address to the client and includes it in a response packe
158. scription on page A 26 7 Click on Apply 8 Click on Done You return to the Configuration Manager window 117362 A Rev A 5 17 Configuring SNMP RMON BootP DHCP and RARP Services Deleting the BootP Relay Agent from an IP Interface To delete a BootP relay agent from an IP interface complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens 5 Click on the interface from which you want to delete BootP 6 Click on Delete The Configuration Manager deletes the BootP relay agent and all forwarding table entries that you specified from the selected interface 7 Click on Done You return to the Configuration Manager window Deleting BootP Globally To globally delete BootP from all interfaces on a router complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens Choose BOOTP The BOOTP menu opens Choose Delete The Delete menu opens a OTN Click on Delete C
159. severity level at which you want the manager to log the event Table 2 1 shows the available severity levels and their suggested meanings Depending on how you configure the SNMP trap parameters see Configuring Traps on the Router on page 3 19 the agent may also send the threshold exception as an SNMP trap The Site Manager threshold feature is functionally similar to the RMON Alarm and Event facility except for some minor differences The Site Manager threshold feature provides three tiered thresholds and defines a user definable hysteresis mechanism The RMON Alarm and Event facility provides a two tiered proprietary thresholds system Threshold Example Suppose you want SNMP to warn you if the number of high priority Priority Level 1 packets queued for transmission is approaching the maximum number supported by an interface This maximum value is specified by the wfCctOptsCngcCfgQp1Threshold MIB object Using the threshold parameters you set a threshold for wfCctOptsCngcCfgQp1Threshold equal to 205 117362 A Rev A 2 7 Configuring SNMP RMON BootP DHCP and RARP Services You also set the polling interval to 20 seconds to indicate that every 20 seconds the agent should check variables for which you have configured thresholds You set the threshold action to Greaterthan and set the threshold levels and severity of events to the values shown in Table 2 2 Table 2 2 Example of Threshold and Severity Settings T
160. sing Optivity Analysis with RMON 2c ee td ette Pete tabe aa 4 12 Using topuvie LAN wiih RMON i a iere ap o te Ee ppt t ett ep aad cit d pb che 4 15 Threshold Manager Tool PEE EE EE E ob reer ERE QUEUE 4 15 Fault Corelator Tog ee K 4 15 Chapter 5 Customizing BootP Customizing BootP Relay Agent Parameters 122escasuesecetes tesis ius henes batteria puta 5 2 Disabling and Reenabling BOOP use ei RE RERRELR EXE ERA Ner X C Re RE FR GREEN VR 5 2 Specifying Maximum Number of Hops from Client to Server TE 5 2 pacituing a Minimum Timegut WANS 22i creauit Eier tione etn EE FEL cutie aneia 5 3 Specifying the Relay Mode for Packet Forwarding sss 5 4 Setting Up the Routing Path Between the Booi Serer aiid The ROWS o aja Gea caia ania Rc ond Dr cns poa 5 5 Enabling BootP on Router Interfaces poa aaan Ga T T 55 Specifying Interfaces to Receive and Relay BOOI REQUEST PACE IG asesinos a aaron tanh unas Cosi ind EA n o Rai a Ac NR 5 7 Creating a BootP Relay Agent Forwarding Table eese 5 8 Specifying the IP Interface Input Output Address Pair ssssss 5 8 Deleting an IP Interface Input Output Address Pair ropisi E A 5 9 Disabling Booth Route Forwarding sssciisseciscccsatseccisnmiedccsceeacteiestimntescdernenrnaivacees 5 10 Configuring an AN to Use EZ Install over a Frame Relay PVC sussssss 5
161. sport Before you configure SNMP BootP DHCP and RARP services using the BCC or Site Manager you must first start IP on the router Using Site Manager Before you can select a protocol to run on the router you must configure a circuit that the protocol can use as an interface to an attached network For information and instructions see Configuring WAN Line Services and Configuring Ethernet FDDI and Token Ring Services When you have successfully configured the circuit the Select Protocols window opens Proceed as follows Site Manager Procedure You do this System responds 1 In the Select Protocols window select IP The IP Configuration window opens Then click on OK 2 Setthe following parameters IP Address Subnet Mask Transmit Bcast Addr UnNumbered Assoc Address Click on Help or refer to Configuring IP Services for parameter descriptions 3 Click on OK You return to the Configuration Manager window Using the BCC To start IP on the router 1 Configure a physical interface on an available slot connector 2 Configure an IP interface on the physical interface 117362 A Rev A 1 3 Configuring SNMP RMON BootP DHCP and RARP Services Step 1 Configuring a Physical Interface To configure a physical interface on a slot and connector navigate to the top level box prompt and enter interface type slot slot number connector connector number interface typeis the name
162. structions To allow DHCP operation be sure to set the Pass Through Mode parameter in the BOOTP Relay Agent Preferred Server Table window to DHCP or to BOOTP and DHCP To specify servers for DHCP servers complete the tasks in the following table Site Manager Procedure You do this System responds i In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens Click on Pref Serv The BOOTP Relay Agent Preferred Server Table opens Set the Pass Through Mode parameter Click on Help or see the parameter description on page A 26 7 Click on Apply 8 Click on Done You return to the Configuration Manager window Deleting DHCP from an IP Interface To delete DHCP from an IP interface while maintaining BootP on that interface set the Pass Through Mode parameter in the BOOTP Relay Agent Interface Table window to BOOTP 117362 A Rev A 6 3 Configuring SNMP RMON BootP DHCP and RARP Services To delete DHCP from an IP interface complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens
163. sts of a central network management station and a remote monitoring device called an RMON agent The network management station can be a Windows based or UNIX based workstation or PC running a network management application such as Optivity Analysis From the management station you can issue SNMP commands requesting information from the RMON agent The RMON agent sends the requested information to the management station which then processes and displays this information on its console The RMON agent is software that resides on a DCM within a Bay Networks BayStack AN ANH or ARN router on a remote network As packets travel across the network the RMON agent continuously collects and analyzes Ethernet data in real time on a remote LAN segment and stores the data locally in the Ethernet DCM according to the RMON MIB specification defined in RFC 1757 You can have multiple RMON agents running in different segments of the network usually one per subnet Figure 2 2 2 10 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts Network management station RMON data collection Optivity or third party RMON management Workstation module software DCM Lose Ethernet LAN segment Workstation Router NE LAN segment RMON data collection module DCM
164. t To specify the client s IP address complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose Reverse ARP The Reverse ARP menu opens 4 Choose Map Table The RARP Map Table window opens 5 Click on Add The RARP Addresses window opens 6 Setthe IP Address parameter Click on Help or see the parameter description on page A 28 7 Click on OK You return to the Configuration Manager window 7 4 117362 A Rev A Customizing RARP Disabling RARP Globally To globally disable RARP from all router interfaces on which it is configured complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose Reverse ARP The Reverse ARP menu opens 4 Choose Globals The Edit RARP Global Parameters window opens 5 Setthe Enable Disable parameter to Disable 6 Click on OK The Configuration Manager disables RARP on all router interfaces and returns you to the Configuration Manager window Deleting RARP Globally To globally delete RARP from all router interfaces on which it is configured complete the tasks in the following table
165. t of Defense or their successors whichever is applicable 6 Use of Software in the European Community This provision applies to all Software acquired for use within the European Community If Licensee uses the Software within a country in the European Community the Software Directive enacted by the Council of European Communities Directive dated 14 May 1991 will apply to the examination of the Software to facilitate interoperability Licensee agrees to notify Bay Networks of any such intended examination of the Software and may procure support and assistance from Bay Networks 7 Term and termination This license is effective until terminated however all of the restrictions with respect to Bay Networks copyright in the Software and user manuals will cease being effective at the date of expiration of the Bay Networks copyright those restrictions relating to use and disclosure of Bay Networks confidential information shall continue in effect Licensee may terminate this license at any time The license will automatically terminate if Licensee fails to comply with any of the terms and conditions of the license Upon termination for any reason Licensee will immediately destroy or return to Bay Networks the Software user manuals and all copies Bay Networks is not liable to Licensee for damages in any form solely by reason of the termination of this license 8 Export and Re export Licensee agrees not to export directly or indirectly the So
166. te to the SNMP prompt and enter enable For example the following command line reenables SNMP and displays its default values snmp enable snmp info on box state enabled lock enabled lock address 0 0 0 0 117362 A Rev A 3 3 Configuring SNMP RMON BootP DHCP and RARP Services lock timeout 2 authentication traps enabled type of service reliability Scope delimiter 0x40 gt This function is not available snmp Using Site Manager To disable and reenable SNMP complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose SNMP 4 Choose Global The SNMP menu opens The Edit SNMP Global Parameters window opens 5 Setthe Enable parameter Click on Help or see the parameter description on page A 3 6 Click on OK You return to the Configuration Manager window Caution When you disable the SNMP agent in dynamic mode you immediately prohibit Site Manager from communicating with the router and will disconnect your Site Manager session Enabling and Disabling SNMP Lock Mechanism The SNMP locking mechanism prohibits the SNMP agent from responding to multiple network management stations issuing simultaneous SNMP set commands to the router 3 4 117362 A Rev A Customizing SNMP
167. the trap will be received Entity number the code assigned to the entity issuing the event that uniquely identifies a router event e Severity level indicates whether the trap is a fault warning information trace or debug message A router never broadcasts traps on the network Rather it sends traps to specific IP addresses which you configure on the router as managers of a community Traps are always sent to specific managers Specifying a Trap Entity A trap entity is associated with a log event An entity is the software that generates a message Entities include Bay Networks software dedicated to the operation of a software service such as TFTP and IP Each entity contains a specific code that corresponds to the event you want to configure The entity code together with the event code uniquely identifies the event you want to configure as a trap For a complete list of entities both their abbreviations and full names and associated entity codes refer to Event Messages for Routers After you specify the number of the slot on which the trap will be received you specify the entity name for which you want to configure traps Using the BCC To specify a trap entity based on slot and protocol entity enter the following command at the SNMP prompt trap entity entity entity number slot slot number entity number is the code assigned to the entity issuing the event that uniquely identifies an event slot number is the nu
168. tion Tasks Using the BCC and Site Manager 3 2 Customizing SNMP Global Parameters 3 3 Adding SNMP Communities 3 9 Configuring SNMP Community Managers 3 13 Configuring Traps on the Router 3 19 Configuring Thresholds 3 26 This chapter describes how to customize SNMP services It assumes you have configured an IP interface using the default parameters as described in Chapter 1 and that you understand the SNMP concepts in Chapter 2 117362 A Rev A 3 1 Configuring SNMP RMON BootP DHCP and RARP Services Summary of SNMP Configuration Tasks Using the BCC and Site Manager Table 3 1 summarizes SNMP configuration tasks and indicates whether you can use the BCC or Site Manager to perform each task Table 3 1 SNMP Configuration Tasks Task BCC Site Manager Disabling and Reenabling SNMP v Enabling and Disabling SNMP Lock Mechanism Specifying a Lock Address Specifying a Lock Timeout Value Enabling and Disabling Authentication Failure Traps NEN ENS Specifying the type of service for SNMP packets Specifying an SNMP Community Name Specifying Community Access Privileges Deleting an SNMP Community Adding a Manager Configuring a Manager to Receive Traps Deleting a Manager Specifying a Trap Entity Specifying the Severity Level for Traps Disabling a Trap Entity Configuring Trap Exceptions De
169. tion about editing IP interface parameters Customizing BootP For information about customizing BootP parameters see Chapter 5 Customizing BootP Starting DHCP Services Before you can enable DHCP services you must enable IP and BootP on the router You can however enable IP BootP and DHCP on the router simultaneously If you want to add BootP and DHCP to a circuit on which you have already configured IP see Configuring and Managing Routers with Site Manager for information about adding a protocol When you enable BootP and DHCP you are required to configure only a few parameters The Configuration Manager supplies default values for the remaining parameters 117362 A Rev A Starting SNMP RMON BootP DHCP and RARP Services Enabling DHCP on an Interface When you select either a link or net module connector or when you finish configuring a WAN circuit the Select Protocols window opens Note The Select Protocols window displays only those protocols that the circuit type supports To enable DHCP on an interface complete the tasks in the following table Site Manager Procedure You do this See This Section s Enable BootP on the interface Enabling BootP on an Interface on page 1 9 for instructions 2 Access the BootP Relay Agent Interface Customizing BootP Relay Agent Table window Parameters on page 5 2 for instructions 3 Set the Pass Through Mode para
170. tting Valid parameter options Parameter function Instructions for setting the parameter Management information base MIB object ID The Technician Interface allows you to modify parameters by issuing set and commit commands with the MIB object ID This process is equivalent to modifying parameters using Site Manager For more information about using the Technician Interface to access the MIB refer to Using Technician Interface Software Caution The Technician Interface does not verify the validity of your parameter values Entering an invalid value can corrupt your configuration A 2 117362 A Rev A SNMP DCM BootP DHCP and RARP Parameter Descriptions SNMP Global Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Use the following guidelines to configure SNMP global parameters in the Configuration Manager window Enable Configuration Manager gt Protocols gt IP gt SNMP gt Global Enable Enable Disable Specifies the state of the SNMP agent on all interfaces that support IP Select Enable to enable the SNMP agent select Disable to disable the SNMP agent 1 3 6 1 4 1 18 3 5 3 5 1 1 Use Lock Configuration Manager gt Protocols gt IP gt SNMP gt Global Enable Enable Disable Specifies whether the agent responds to multiple network management stations iss
171. ty seme bee ost ee TP ere TRANE TPA 3 12 Configuring SNMP Community Manager caeco dee sectetut kie bnt ace delta species 3 13 Peers IS ELIT ISLAND D DT 3 13 Configuring a Manager to Receive Traps eeeeeeeeeeee T 9 14 117362 A Rev A vii apaci po te Tap PON Lossstepncxi upon Copt aoo acp Saab ood a pd 3 15 OCCU II a I DDE E m T 3 16 Deleng a 1 3 AM i ee neta o D S LL 3 17 Gonliguring Traps on the Houler iuase eive EE Fen ER EXE ERE BER CENA VIL RREXX RA 3 18 oppi ving a Trap ERIT coniun WeissRied icis deleti ta SR 3 19 Specifying this Seventy Level Tor WAS ccccicctcesccs testi cccccmasionaiasinedaicensseccariemeaeaeean 3 21 EN eT mgr eT 3 22 Contouring Trap ISxospHDS 22 9 eobicidstret i idee citudin Pep aD OPE EE tos dE eveni eee 3 23 nno Tap E COPINE ose ese ces nape Ere RPG oer dI Hr lu opp MI PDT sheeted 3 25 ses ques anii rede EE EO S 3 26 Disabling and Reenabling Thresholda ouai i tree obreros satt tha ccce erue enn 3 27 Setting the Threshold Polling IDerval saisisinsisiinssnaiaa a acces 3 27 Adding a Threshold npa shapes saat UE e bends eee 3 28 Enabling and Disabling Thresholds for a Variable sssssssssss 3 20 Specifying a Value for the Threshold Level sesssssseeeneee 3 30 Specifying the Severity Level for Event Messages REQUIRE DURER RON TE 9 30 specilving Thisshold LIES i c coda nodal Decani Caaaprsi nebat Cx apr 3 31 Dete
172. ty complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose SNMP The SNMP menu opens 4 Choose Communities The SNMP Community List window opens 5 Choose Community The Community menu opens 6 Choose Add Community The SNMP Community window opens 7 Setthe Access parameter Click on Help or see the parameter description on page A 5 8 Click on OK You return to the Configuration Manager window 117362 A Rev A 3 11 Configuring SNMP RMON BootP DHCP and RARP Services Deleting an SNMP Community You can delete an SNMP community to which the the agent responds or sends traps Using the BCC To delete an SNMP community navigate to the community specific prompt and enter delete For example the following command line deletes the community Router1 community router1 delete snmp Using Site Manager To delete an SNMP community complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose SNMP The SNMP menu opens 4 Choose Communities The SNMP Community List window opens 5 Select the community you want to
173. ty 2 on slot 2 trap entity 2 2 disable trap entity 2 2 Using Site Manager To disable a trap entity complete the tasks in the following table Site Manager Procedure You do this In the Configuration Manager window choose Protocols System responds The Protocols menu opens Configuring Trap Exceptions 2 Choose IP The IP menu opens 3 Choose SNMP The SNMP menu opens 4 Choose Trap Configuration The Trap Configuration menu opens 5 In the Current Entities column select the The entity name that you selected is entity name that you want to delete highlighted 6 Click on Remove The entity name is removed from the Current Entities column 7 Click on Save Site Manager saves the changes that you made You can configure up to 50 trap exceptions which specify that the SNMP agent always sends or never sends traps to the network management station regardless of the trap configuration settings and regardless of the slot you specified You configure a trap exception by specifying the following Entity code for the event for which you want to configure an exception Code number of the event for which you want to configure an exception Whether the SNMP agent always sends or never sends a trap to the network management station See Event Messages for Routers for entity codes 117362 A Rev A 3 23 Configuring SNMP RMON BootP DHCP and RARP Services Using the B
174. u must set up a preferred server in the BootP Relay Agent Interface Table window see Configuring BootP Preferred Servers on page 5 13 To specify the IP interface input output address pair complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose BOOTP The BOOTP menu opens continued 5 8 117362 A Rev A Customizing BootP Site Manager Procedure continued You do this System responds 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens This window lists all the IP interfaces that you have configured for BOOTP services on the router 5 Click on Forward I F The BOOTP Relay Agent Forwarding Table window opens 6 Click on Add The BOOTP Addresses window opens 7 Set the following parameters Input IP Address Output IP Address Click on Help or see the parameter descriptions beginning on page A 22 8 Click on OK The BOOTP Relay Agent Forwarding Table opens 9 Click on Done You return to the Configuration Manager window Deleting an IP Interface Input Output Address Pair To delete an input output address pair from the BootP relay agent forwarding table complete the tasks in the following table Site Manager Procedure
175. uing simultaneous SNMP set commands to the router When you set this parameter to Enable the agent identifies the station from which it receives the next SNMP set command and for a time equal to the value of the Lock Time Out parameter responds only to SNMP set commands from that station If the agent receives an SNMP set command from another network management station during this time it issues an SNMP genErr GetResponse PDU which that station logs as an SNMP set error message Select Enable to prohibit the agent from responding to simultaneous SNMP commands from multiple network management stations 1 3 6 1 4 1 18 3 5 3 5 1 2 117362 A Rev A A 3 Configuring SNMP RMON BootP DHCP and RARP Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Lock Time Out Configuration Manager gt Protocols gt IP gt SNMP gt Global 2 1 to 60 minutes Specifies the maximum number of minutes the agent allows an idle network management station to hold a lock on it During this time the agent locks out SNMP set commands from other network management stations The lock timer is reset each time the locking manager issues an SNMP set command Enter the number of minutes only if you set the Use Lock parameter to Enable 1 3 6 1 4 1 18 3 5 3 5 1 4 Authentication Failure Traps Configuration Manager gt Protocols
176. want to configure an exception See Event Messages for Routers for entity codes 1 3 6 1 4 1 18 3 5 3 5 6 1 3 Event Code Configuration Manager gt Protocols gt IP gt SNMP gt Trap Configuration gt Exceptions gt Add None Any valid event code number Specifies the code number for the event for which you want to configure an exception Enter the event code number for the event for which you want to configure an exception See Event Messages for Routers for event code numbers 1 3 6 1 4 1 18 3 5 3 5 6 1 4 117362 A Rev A A 7 Configuring SNMP RMON BootP DHCP and RARP Services Parameter Path Default Options Function Instructions MIB Object ID Always Never Trap Configuration Manager gt Protocols gt IP gt SNMP gt Trap Configuration gt Exceptions gt Add None Always Never Specifies whether the SNMP agent always sends or never sends this trap to the network management station The instructions you specify in this field override the settings in the Trap Configuration window and affect traps sent from every slot in the router Select Always or Never 1 3 6 1 4 1 18 3 5 3 5 6 1 2 SNMP Threshold Global Parameters Parameter Path Default Options Function Instructions MIB Object ID Use the following guidelines to configure SNMP threshold global parameters in the Edit Thresholds Global Parameters window Enable Disable Configuration Manager gt Protocols gt Globa
177. with proof of the date of shipment This warranty does not apply if the media has been damaged as a result of accident misuse or abuse The Licensee assumes all responsibility for selection of the Software to achieve Licensee s intended results and for the installation use and results obtained from the Software Bay Networks does not warrant a that the functions contained in the software will meet the Licensee s requirements b that the Software will operate in the hardware or software combinations that the Licensee may select c that the operation of the Software will be uninterrupted or error free or d that all defects in the operation of the Software will be corrected Bay Networks is not obligated to remedy any Software defect that cannot be reproduced with the latest Software release These warranties do not apply to the Software if it has been 1 altered except by Bay Networks or in accordance with its instructions ii used in conjunction with another vendor s product resulting in the defect or iii damaged by improper environment abuse misuse accident or negligence THE FOREGOING WARRANTIES AND LIMITATIONS ARE EXCLUSIVE REMEDIES AND ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Licensee is responsible for the security of 117362 A Rev A iii its own data and information and for maintaining adequate procedures apart from
178. y in bytes you need for the host data as follows 105 value of the RMON Max Host parameter 2 22 117362 A Rev A SNMP RMON BootP DHCP and RARP Concepts HostTopN Group To save memory and increase performance there is no default configuration for the HostTopN group You must create HostTopN configurations through your RMON network management application You can create as many HostTopN configurations as memory permits up to the RMON limit of 65 535 configurations Note Before you create a HostTopN configuration you must create a host configuration Each HostTopN configuration requires 164 bytes The HostTopN data requires 10 bytes of memory per host address the Ethernet DCM detects on a segment You calculate the total memory in bytes you need for the HostTopN data as follows 10 value of the RMON Max Host parameter See Host Group on pages 2 22 to 2 23 for information about setting the RMON Max Host parameter Matrix Group When you enable the Ethernet DCM the default setting Disabled will not set up the RMON Default Matrix parameter on the Ethernet DCM To create a matrix configuration set the RMON Default Matrix parameter to Enable before you enable the Ethernet DCM see Configuring BayStack Remote Access for details Some RMON network management applications expect the DCM to set up a matrix configuration while others set up their own configurations Note The RMON agent allows y
179. y Agent Interface Table window opens 5 Click on Pref Serv The BOOTP Relay Agent Preferred Server Table opens continued 5 16 117362 A Rev A Customizing BootP Site Manager Procedure continued You do this System responds 6 Set the Enable Disable parameter Click on Help or see the parameter description on page A 26 7 Click on Apply 8 Click on Done You return to the Configuration Manager window Filtering BootP and DHCP Packets You can control whether an interface transmits BootP packets DHCP packets or both to a server by configuring filters for these specific packets You configure this type of filter by setting the Pass Through Mode parameter in Site Manager The default setting is BootP and allows the interface to transmit only BootP packets Be sure to change the setting if you want to transmit DHCP messages To filter BootP and DHCP packets complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens 5 Click on Pref Serv The BOOTP Relay Agent Preferred Server Table opens 6 Set the Pass Through Mode parameter Click on Help or see the parameter de
180. y agent forwarding table See Specifying Interfaces to Receive and Relay BOOTREQUEST Packets on page 5 7 for instructions To allow DCHP operation be sure to set the Pass Through Mode parameter in the BOOTP Relay Agent Forwarding Table window to DHCP or to BOOTP and DHCP To specify interfaces to receive and relay DHCP packets complete the tasks in the following table Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose BOOTP The BOOTP menu opens 4 Choose Relay Agent Interface Table The BOOTP Relay Agent Interface Table window opens This window lists all the IP interfaces that you have configured for BOOTP services on the router 5 Click on Forward I F The BOOTP Relay Agent Forwarding Table window opens 6 Select the address pair you want 7 Set the Pass Through Mode parameter Click on Help or see the parameter description on page A 26 8 Click on Apply 9 Click on Done You return to the Configuration Manager window 6 2 117362 A Rev A Specifying Servers for DHCP Services Customizing DHCP You can improve the efficiency of the packet forwarding process or transmit DHCP packets through unnumbered interfaces by specifying servers for DHCP services See Specifying Servers for BootP Services on page 5 13 for in

Avaya Configuring SNMP, RMON, BOOTP, DHCP, and RARP Services User's Manual

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