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Avaya RMON2 User's Manual

1. Topic Page Router Hardware and Software Prerequisites 2 2 Starting Configuration Tools 2 4 Starting RMON and RMON2 2 4 Customizing the Ethernet DCM 2 9 For detailed information about RMON and RMON Z2 and the Bay Networks implementation of RMON and RMON2 see Chapter 1 RMON and RMON2 Overview 303539 A Rev 00 2 1 Configuring RMON and RMON2 Router Hardware and Software Prerequisites Before you can use the full RMON and RMON2 functionality on BayStack AN ANH ARN and ARN 100 routers your router must meet specific hardware and software requirements To ensure a successful implementation of RMON and RMON2 complete the following tasks 1 Install an Ethernet DCM module in each BayStack AN ANH or ARN router from which you want to collect RMON and RMON2 statistics For complete installation instructions see one of the following guides e Installing an N11 Data Collection Module DCM in a BayStack AN Installing an N11 Data Collection Module DCM in an 8 Port ANH e Installing an Ethernet RMON DCM in a BayStack ARN Router Upgrade the memory on the Ethernet DCM The minimum memory requirements are as follows e RMON 4 MB e RMON2 8 MB To determine how much memory you need to configure RMON MIB groups and to store the data for these groups see Memory Requirements for RMON Groups on page C 11 Review the recommended software and hardware requirements for
2. 4 Click on OK continued 303539 A Rev 00 Configuring RMON and RMON2 Site Manager Procedure continued You do this System responds 5 Choose the link or net module connector on which you are enabling mini RMON for example XTRCV The Add Circuit window opens 6 Accept the default circuit name or modify it then click on OK The Select Protocols window opens 7 Choose IP and RIP then click on OK 8 Set the following parameters e IP Address e Subnet Mask Transmit Beast Addr e UnNumbered Assoc Address Click on Help or see Configuring IP Services for parameter descriptions 9 Click on OK You return to the Configuration Manager window 10 Choose Platform The Platform menu opens 11 Choose RMON Stats 12 10 and later The RMON Stats 12 10 and later menu opens 12 Choose Enable Base Module RMON Stats The Enable Base Module RMON Stats menu opens indicating that you have enabled the base module for RMON data collection 303539 A Rev 00 Configuring Mini RMON on an ARN 100 Router Disabling Mini RMON Data Collection To stop collecting mini RMON statistics on the Ethernet you must delete the RMON Stats base module on the ARN 100 router To delete the RMON Stats base module on the ARN 100 router complete the following steps Site Manager Procedure You do this System responds 1 In
3. 5 Configure an Ethernet interface for each LAN segment you want to monitor 6 Install and configure on your network management station one of these network management applications to view and analyze RMON and RMON2 statistics generated by the Ethernet DCM e Optivity Enterprise contains Optivity Analysis for UNIX and Optivity LAN e Optivity Analysis for Windows NT 303539 A Rev 00 2 3 Configuring RMON and RMON2 Starting Configuration Tools Starting RMON and RMON2 Preparing a Configuration File Before configuring RMON and RMON2 see the appropriate user guide 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 Site Manager Configuring and Managing Routers with Site Manager These guides also describe generally how to create and modify a device configuration To begin using RMON and RMON2 for data collection on BayStack routers you must enable the Ethernet DCM using the default configuration To start RMON and RMON2 on Ethernet DCM enabled AN ANH and ARN routers using the BCC or Site Manager perform the following tasks e Prepare a configuration file e Configure the Ethernet DCM To create a configuration file using Site Manager complete the following steps Site Manager Procedure You do this System r
4. 1 12 303539 A Rev 00 RMON and RMON2 Overview In Optivity Analysis the RMON tools provide methods for collecting data for all RMON and RMON2 MIB groups Table 1 4 summarizes the RMON based tools and lists the corresponding RMON MIB groups that they use to collect and display traffic statistics Table 1 4 Optivity Analysis for UNIX RMON Based Tools RMON Tool Name Purpose Possible Uses Special Features MIB Group Segment Display and record Plan bandwidth intensive Ability to view Statistics Statistics information from the tasks multiple sessions RMON statistics group This information Baseline individual Automatic utilization includes raw packet segment traffic calculation based on counts and bandwidth characteristics available bandwidth utilization History collection Host Statistics Display traffic Determine which hosts are Filter for viewing Host Table summaries for each host generating specific types TopN hosts and on a selected segment of traffic HostTopN Link packet capture Provide a HostTopN 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 workgroups for graphic coding of segmentation information Level 3 support for conversations by pr
5. 2 6 303539 A Rev 00 Starting RMON and RMON2 on AN ANH and ARN Routers When you enable the Ethernet DCM the RMON Object Support parameter is set to RMON2 by default allowing the Ethernet DCM to collect both RMON and RMON2 statistics You can use Optivity Analysis for UNIX or Optivity Analysis for Windows NT to view and analyze RMON and RMON2 statistics Configuring an Ethernet DCM for ARN Routers Before you can configure an Ethernet DCM on an ARN router you must configure IP and SNMP on the router see Configuring SNMP BootP DHCP and RARP Services When you configure the Ethernet DCM for an ARN router you create the DCM middleware DCMMW configuration using the default parameter values For information about modifying the default values see Chapter 4 Customizing a DCM for RMON and RMON2 For an ARN router you can configure up to two DCMs one on the router s base module and one on the router s expansion module You must configure each module separately Using the BCC To configure an Ethernet DCM for an ARN router 1 Navigate to the root box level and enter RMON configuration mode rmon 2 Set the module type for the DCM that you want to configure by entering dcm dem id lt module_type gt Module_type is either base module or expansion module For example the following command sequence configures one DCM on an ARN router base module and another DCM on an ARN router expansion module
6. The Global menu opens 4 Choose Base Module DCM or Expansion Module DCM The Edit Base Module DCM Parameters window or the Edit Expansion Module DCM Parameters window opens Set the Enable Disable parameter to Disable Click on Help or see the parameter description on page B 2 Click on OK You return to the Configuration Manager window Repeat steps 1 through 4 then go to step 8 The Edit Base Module DCM Parameters window or the Edit Expansion Module DCM Parameters window opens Set the Configuration Mode parameter to Shared Memory Click on Help or see the parameter description on page B 4 Set the RMON Default Matrix parameter Click on Help or see the parameter description on page B 6 10 Set the Enable Disable parameter to Enable Click on Help or see the parameter description on page B 2 11 Click on OK You return to the Configuration Manager window 303539 A Rev 00 4 17 Configuring RMON and RMON2 Rebooting the Ethernet DCM After you finish modifying Ethernet DCM configuration parameters you must reboot the Ethernet DCM for these changes to take effect You do this by reenabling the Ethernet DCM Using the BCC To reenable the DCM for data collection navigate to the dcm base module or dcm expansion module context for example box dcm base module and enter state enabled For example the following command line reenables a DCM
7. Configuring RMON and RMON2 BayRS Version 13 00 Site Manager Software Version 7 00 BCC Version 5 04 Part No 303539 A Rev 00 October 1998 GIS Bay Networks Where Information Flows GIS Bay Networks Where Information Flows 4401 Great America Parkway 8 Federal Street Santa Clara CA 95054 Billerica MA 01821 Copyright 1998 Bay Networks Inc All rights reserved Printed in the USA October 1998 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 ACE AFN AN BCN BLN BN BNX CN FRE LN Optivity PPX Quick2Config and Bay Networks are registered trademarks and Advanced Remote Node ANH ARN ASN BayRS BaySecure BayStack BayStream BCC BCNX BLNX EZ Install EZ Internetwork EZ LAN FN IP AutoLearn PathMan RouterMan SN SPEX Switch Node System 5000 and the Bay Networks logo are trademarks of Bay Networks Inc Microso
8. Starting Mini RMON To start RMON data collection on an ARN 100 base module use Site Manager to perform the following tasks e Prepare a configuration file e Enable the base module and RMON data collection 3 2 303539 A Rev 00 Configuring Mini RMON on an ARN 100 Router Preparing a Configuration File To create a configuration file complete the following steps Site Manager Procedure You do this System responds 1 From the Site Manager main window choose Tools The Tools menu opens 2 Choose Configuration Manager The Configuration Manager window opens 3 Choose Local File Remote File or Dynamic Site Manager prompts you to choose a configuration file 4 Select the configuration file and click on OK The Configuration Manager window opens displaying the router models Enabling Mini RMON Data Collection For information about Site Manager and how to work with configuration files see Configuring and Managing Routers with Site Manager To begin collecting mini RMON statistics on the ARN 100 base module you enable the base module and then enable RMON by completing the following steps Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose the ARN router model 2 Click on Confirm 3 Choose the 10 100BASE TX Ethernet or the 100BASE FX Ethernet net or link module for the ARN 100 router
9. summary Displays configuration and statistical information about all Ethernet DCMs configured on the router The output includes the following information Data Collection Module Number that corresponds to either a base module 1 or an expansion module 2 DCM State State of the DCM enabled or disabled Operational Status Indicates the status of the DCM up or down RMON Object Support Indicates whether the Ethernet DCM is collecting RMON or RMON2 statistics Module Type Type of circuit to which the DCM is attached on the AN ANH or ARN router base module or ARN expansion module The only module type supported by the DCM is Ethernet Memory Size Total size of available memory on the DCM Hardware Revision Revision number associated with the DCM hardware Firmware Revision Revision number associated with the DCM firmware Agent Image Version Version number of the DCM agent software Boot Option Indicates whether the DCM uses the image file in its own flash memory local for booting or a boot image copied from the AN ANH or ARN router s flash memory card to DCM shared memory download Image Name Name of the image file on the AN ANH or ARN router s flash memory card A 2 303539 A Rev 00 Monitoring the DCM Using the BCC show Command Image Save Mode Config Source Config Save Mode Max hosts per entry Configured hosts per entry Create Host Control Table Create Matrix Control Table image Indic
10. Event Trap Considerations To allow RMON to generate trap events you must set up the SNMP manager table In the SNMP manager table you add the SNMP community names that you configured for the network management application for example Optivity Analysis for Windows NT and for the hosts on which you are running applications If you do not make these changes the router will be unable to send trap events to the network management station See Configuring SNMP BootP DHCP and RARP Services for instructions on how to set up an SNMP manager table When you set up the SNMP manager table you can do one of the following 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 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 managers 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 All For more information about changing communities and community manager parameters see Configuring SNMP BootP DHCP and RARP Services RMON2 MIB Groups With RMON2 you can view traffic statistics by protocol a
11. 4 303539 A Rev 00 Tables Table 1 1 RMON MIB GROG ccciassrssearrendscansnnanasnao muster 1 2 Table 1 2 RMON2 IE GOUDES sca aincacaccesansceaponecaiadutacsdeasemadatiommanneaiaidammenauel 3 Table 1 3 Summary of RMON and RMON2 Suppott eeeeeecceeeeeeeeeeeeeeeeeeeeees 1 8 Table 1 4 Optivity Analysis for UNIX RMON Based Tools cccccccesseeeeeeeeeens 1 13 Table 2 1 AN ANH Requirements for Using RMON and RMON2 PEEN T 2 2 Table 2 2 ARN Requirements for Using RMON and RMON2 nesese 2 3 Table C 1 DRAM and RMON Memory Size cecceesceeeeceeeeeeeeeeeeeeeeeeeeeeeesaeenaees C 11 Table C 2 Maximum Number Of FORE cecucctsctccntesonetscrcdcetendiaderiicndateeniabtaroeciomes C 13 Table C 3 Default Size for Capture Butter icc cccccccitseesccdceessccitsenenteas inescedi acne seaias C 15 303539 A Rev 00 xi Preface This guide describes configuring and managing an Ethernet remote monitoring RMON data collection module DCM in a Bay Networks BayStack router The BayStack family of routers includes the following platforms e Access Node AN e Access Node Hub ANH e Advanced Remote Node ARN You can use the Bay Command Console BCC or Site Manager to configure RMON and RMON on a router In this guide you will find instructions for using both the BCC and Site Manager Before You Begin Before using this guide you must complete the following procedures For a new rout
12. 7 Image Save Mode Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM or Expansion Module DCM Save Save No Save Specifies whether the DCM saves the active image to its local flash memory To save the active DCM boot image file to the DCM local flash memory overwriting the existing saved image select Save Select No Save 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 303539 A Rev 00 B 3 Configuring RMON and RMON2 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Configuration Mode Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM or Expansion Module DCM Local Local Shared Memory Specifies whether to use the configuration information in DCM shared memory DRAM or the configuration information saved on the DCM s flash memory 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 Save Configuration Info Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM or Expansion Modu
13. ARN router s flash memory card to DCM shared memory download Name of the image file on the AN ANH or ARN router s flash memory card Indicates that the DCM saves the active image to its local flash memory save or that the DCM does not save the DCM boot image no save if the save mode is nosave 303539 A Rev 00 Configuring RMON and RMON2 dcmconfig Displays configuration information about all Ethernet DCMs configured on the AN ANH or ARN router including the state of the DCM its operational status its hardware and firmware revisions and so forth The output includes the following information Data Collection Module Number that corresponds to either a base module 1 or an expansion module 2 DCM State State of the DCM enabled or disabled Operational Status Indicates the operational status of the DCM up or down Module Type Type of circuit to which the DCM is attached on the AN ANH or ARN router base module or ARN expansion module The only module type supported by the DCM is Ethernet Memory Size Total memory size of the DCM software Hardware Revision Revision number associated with the DCM hardware Firmware Revision Revision number associated with the DCM firmware Config Source Indicates that the DCM uses the default configuration information in the DCM local flash memory local or the router s flash memory stored in DCM DRAM shared Config Save Mode Indicates whether the DCM saves the
14. Choose Global The Global menu opens continued 4 10 303539 A Rev 00 Customizing a DCM for RMON and RMON2 Site Manager Procedure continued You do this System responds 4 Choose Base Module DCM or Expansion Module DCM The Edit Base Module DCM Parameters window or the Edit Expansion Module DCM Parameters window opens Set the Enable Disable parameter to Disable Click on Help or see the parameter description on page B 2 Click on OK You return to the Configuration Manager window Repeat steps 1 through 4 then go to step 8 The Edit Base Module DCM Parameters window or the Edit Expansion Module DCM Parameters window opens Set the Boot Option parameter Click on Help or see the parameter description on page B 2 Set the Image Name parameter Click on Help or see the parameter description on page B 3 10 Set the Image Save Mode parameter Click on Help or see the parameter description on page B 3 11 Set the Enable Disable parameter to Enable Click on Help or see the parameter description on page B 2 12 Click on OK You return to the Configuration Manager window 303539 A Rev 00 Configuring RMON and RMON2 Modifying Default RMON MIB Group Parameters If necessary you can change the default values for the following RMON MIB group parameters e Maximum number of host addresses collected in each RMON h
15. Fault Correlator These tools allow you to set thresholds on integer based objects and display trap information when a threshold is exceeded Threshold Manager After you establish a level of performance that you consider normal for your network you can configure your system to generate responses whenever your network performance becomes abnormal 303539 A Rev 00 Configuring RMON and RMON2 You can also set thresholds that initiate alarms whenever specified network conditions occur Whenever a threshold is met or exceeded the specified event occurs and the alarm is triggered You can set thresholds specific to a slot or port For detailed information about installing the Threshold Manager tool see Using Optivity LAN 7 1 for UNIX Fault Correlator After you set alarm thresholds on integer based variables using the Threshold Manager you can use the Fault Correlator tool to decode the traps that are sent to the RMON network management station The Fault Correlator generates fault reports and calculates the current state of network objects and devices Optivity LAN automatically stores this information in the Optivity fault database For detailed information about using the Fault Correlator tool see Using Optivity LAN 7 1 for UNIX Optivity Analysis for Windows NT Optivity Analysis for Windows NT monitors the performance of heterogeneous LANs to help you identify and solve network problems quickly before they lead to net
16. Networks Technical Solutions Center if you do not have access to these sources Use FTP or TFTP to transfer the DCM image file and the Technician Interface script dcmload bat from the workstation to the flash memory card on the router 303539 A Rev 00 D 5 Configuring RMON and RMON2 Enter the following Technician Interface command to download the new software image from the router flash memory card to the DCM flash memory 1 1 demload The Technician Interface displays information about the demload script and displays the following prompt Do you want to download an image to the Base Module DCM or the Expansion Module DCM b e b If the DCM is installed on the base module press Return If the DCM is installed on an ARN expansion module enter e The Technician Interface displays the following prompt Specify DCM image name volume filename Enter the image name in the form lt volume filename gt Volume is 1 and filename is the name you gave the DCM image during the file transfer For example enter 1 in_2 00 1 obj or 1 dcm201image The Technician Interface displays the following prompt Do you want DCM to save this image on its FLASH y n y Answer yes by pressing Return If you answer no the DCM uses the downloaded image only once reverting to the previous image at the next boot The Technician Interface displays the following prompt Do you want to start the download process y n
17. RMON and RMON2 operation Table 2 1 lists the software and hardware requirements for RMON and RMON2 operation on BayStack AN ANH routers Table 2 1 AN ANH Requirements for Using RMON and RMON2 Software Hardware Recommended Version DCM hardware Revision E Boot PROM Version 9 00c anboot exe v9 00c or later Diagnostic PROM Version v7 30 andiag exe v7 30 or later BayRS BayRS Version 12 20 an exe v12 20 or later DCM agent software DCM Agent Software Version 2 00 1 in_2 00 1 0bj 2 2 303539 A Rev 00 Starting RMON and RMON2 on AN ANH and ARN Routers Table 2 2 lists the software and hardware requirements for RMON and RMON2 operation on BayStack ARN routers Table 2 2 ARN Requirements for Using RMON and RMON2 Software Hardware Recommended Version DCM hardware Revision E Boot PROM Version 1 19 arnboot exe v1 19 or later Diagnostic PROM Version 2 00 arndiag exe v2 00 or later BayRS Version 12 20 arn exe v12 20 or later DCM agent software Version 2 00 1 in_2 00 1 0bj Caution Enabling an Ethernet DCM with DCM agent software earlier than Version 2 00 1 generates a warning log message which prevents the Ethernet DCM from booting successfully 4 Verify minimum DCM requirements to determine whether you need to upgrade the DCM software image on the router For instructions see Appendix D Upgrading the DCM Software Image
18. 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 303539 A Rev 00 Configuring RMON and RMON2 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 Bay Networks recommends that you create alarm and event entries using a network management application such as Optivity Analysis for Windows NT You can create as many alarm and event entries as memory permits up to the RMON limit of 65 535 entries The memory limitation for alarm and event groups is based on the memory resources allocated on the router base module rather than on the Ethernet DCM 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 requir
19. 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 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 303539 A Rev 00 Contents Preface Before YOU BEGIN ssie iaaa aa A atdala Sareea TEE ASAS xiii TORE COMOMIOS siosio a i a a xiv E L E E T ES E E E EES ES EEE E S E T E XV Bay Networks Technical Publications sa cccccccimrseesacoanecsaccieseencannisnensdantineroanotaieoianduient ll How TO GoLHOID crossain A e xvi Chapter 1 RMON and RMON2 Overview EUDE e e E E T E E E E E 1 1 RONS E a E A A ere e reece rrr rer rer rrr 1 3 RMON and RMON2 Support on Bay Networks Routers cccscseceeeeeseeeeeteetaeeeeeeeeee 178 RMON and RMONZ APCHIRGCIUNG ccmcccsiimmencsiamnttaceamencadaianmccdeuammendsuasmmerdauntamnccannuanens 1 9 Data Collection Module DOM ssssris
20. gt Mode is either save default or no save For example the following command line specifies that the DCM uses the configuration file in its local flash memory but does not save the configuration information in its local flash memory dcm base module config mode probe memory save mode no save dcm base module The following command specifies that the DCM uses the configuration file in DCM DRAM and saves the configuration information in DRAM to its local flash memory dcm base module config mode shared memory save mode save dcm base module Using Site Manager To set the save mode for the configuration information complete the following steps 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 or the Edit Expansion Module DCM Parameters window opens 5 Set the Enable Disable parameter to Disable Click on Help or see the parameter description on page B 2 continued 303539 A Rev 00 Customizing a DCM for RMON and RMON2 Site Manager Procedure continued You do this System responds 6 Click on OK You return to the Configuration Manager window 7 Repeat steps 1 through 4 then go t
21. rmon dcm dcem id base module dem base module dcm dcm id expansion module dcm expansion module 303539 A Rev 00 2 7 Configuring RMON and RMON2 Using Site Manager To configure an Ethernet DCM for an ARN router complete the following steps Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose an ARN router model Click on Confirm Choose the base expansion or adapter module you want to configure for the ARN router You must choose each module separately For example e For a base module choose Ethernet e For an expansion module choose Ethernet DCM e For an adapter module choose ISDN V Click on OK Choose a net or link module for the ARN router Choose the link or net module connector on which you are configuring the Ethernet DCM The Add Circuit window opens Accept the default circuit name or modify it then click on OK The Select Protocols window opens 8 Choose IP then click on OK The IP Configuration window opens 9 Click on OK You return to the Configuration Manager window 10 Choose Platform The Platform menu opens 11 Choose DCM 11 0 and later The DCM 11 0 and later menu opens 12 Choose Create Base Module DCM or Create Expansion Module DCM You can enable a DCM on both an Ethernet base module and an Ethernet expansion module with an installed DCM Th
22. the Configuration Manager window choose Platform The Platform menu opens 2 Choose RMON Stats 12 10 and later The RMON Stats 12 10 and Later menu opens 3 Choose Delete Base Module RMON Stats The Configuration Manager disables data collection by deleting the base module on the ARN 100 303539 A Rev 00 3 5 Chapter 4 Customizing a DCM for RMON and RMON2 This chapter describes how to customize the configuration of an Ethernet DCM by editing the DCMMW parameters It contains the following information Topic Page Disabling the Ethernet DCM 4 2 Specifying RMON or RMON2 Data Collection 4 3 Specifying the Configuration Mode 4 6 Saving the Configuration Information 4 7 Configuring the DCM Image on the Router 4 9 Modifying Default RMON MIB Group Parameters 4 12 Rebooting the Ethernet DCM 4 18 Deleting the Ethernet DCM Software Subsystem 4 19 Using the Technician Interface to Manage a DCM 4 20 For detailed information about RMON and RMON and the Bay Networks implementation of RMON and RMON2 see Chapter 1 RMON and RMON2 Overview For a description of all Ethernet DCM parameters see Appendix B Ethernet DCM Parameters 303539 A Rev 00 4 1 Configuring RMON and RMON2 Disabling the Ethernet DCM By default DCM data collection is enabled on the router Before you can modify DCMMW configuration parameter
23. to begin collecting data dcem base module state enabled dcm base module Using Site Manager To reboot the Ethernet DCM complete the following steps Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Platform The Platform menu opens 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 Expansion Module DCM The Edit Base Module DCM Parameters window or the Edit Expansion Module DCM Parameters window opens 5 Set the Enable Disable parameter to Enable Click on Help or see the parameter description on page B 2 6 Click on OK You return to the Configuration Manager window 4 18 303539 A Rev 00 Customizing a DCM for RMON and RMON2 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 Before you delete the DCMMW always try disabling the Ethernet DCM first Using the BCC To deactivate the Ethernet DCM navigate to the dcm base module or expansion module context for example box dcm base module and enter delete For example the following command deactivates the Ethernet DCM on a router dcm base module delete rmon Using Site Manager To deactivate the Ethernet DCM complete
24. tools in Optivity Analysis for UNIX or Optivity Analysis for Windows NT For information about using these RMON tools see RMON Network Management Software on page 1 12 303539 A Rev 00 3 1 Configuring RMON and RMON2 Configuration Considerations If you choose you can upgrade an ARN 100 router to collect complete RMON and RMON2 statistics by installing an Ethernet expansion module on the router s base module and attaching the Ethernet DCM to it You can collect full RMON RMON2 statistics only from the segment attached to the router s Ethernet expansion module You cannot collect RMON statistics from both the base module and the Ethernet DCM full RMON RMON2 This restriction is enforced in the following way for ARN 100 routers e If you enable the DCMMW subsystem on an ARN 100 router and then configure mini RMON on the ARN 100 base module the DCMMW subsystem is disabled DCMMW is unloaded and its load mask is cleared e If you enable mini RMON on the base module and you then configure the DCMMW subsystem mini RMON is disabled Mini RMON is unloaded and its load mask is cleared For information about installing an Ethernet DCM on an Ethernet expansion module in an ARN router see Installing an Ethernet RMON DCM in a BayStack ARN Router For information about starting RMON and RMON2 on an ARN 100 router with an installed Ethernet DCM see Chapter 2 Starting RMON and RMON2 on AN ANH and ARN Routers
25. 3 Boot Option Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM or Expansion Module DCM Local Local Download Specifies whether the DCM uses the image file in its own flash memory for booting or a boot image copied from the BayStack router s flash memory card to DCM shared memory 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 You specify the downloaded image using the Image Name parameter 1 3 6 1 4 1 18 3 3 2 16 2 1 8 B 2 303539 A Rev 00 Ethernet DCM Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Image Name Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM or Expansion Module DCM None but you must specify an image name when the Boot Option parameter is set to Download An ASCII text string up to 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 of the image that you want the DCM to boot using the format lt volume_number filename gt for example 1 dem_image 1 3 6 1 4 1 18 3 3 2 16 2 1
26. 4 preparing for ARN 100 3 3 setting the save mode 4 6 Configuration Mode parameter B 4 conventions text xiv customizing DCM parameters 4 1 D data collection module middleware DCMMW 1 9 DCM data collection module configuring AN ANH 2 5 ARN 2 8 customizing parameters 4 12 DCM software image D 3 deleting software subsystem 4 19 disabling 4 2 303539 A Rev 00 Index enabling AN ANH 2 5 2 7 rebooting 4 18 requirements hardware and software 2 2 saving configuration information 4 8 setting for RMON or RMON2 4 3 DCM agent software described 1 11 displaying current version D 1 upgrading D 2 DCM boot image setting the save mode 4 6 upgrading using Site Manager D 3 using the Technician Interface D 5 dcemload command D 7 DCMMW DCM middleware customizing parameters 4 1 deleting 4 19 disabling 4 2 reenabling 4 18 E educational services xvi Enable Disable parameter B 2 Ethernet DCM parameters B 1 event group RMON described C 5 memory requirements C 16 F filter group RMON described C 3 memory requirements C 15 Index 1 H hardware requirements AN ANH 2 2 ARN 2 3 history group RMON described C 2 memory requirements C 12 host group RMON described C 3 enabling host configuration 4 14 memory requirements C 13 HostTopN group RMON described C 3 memory requirements C 14 Image Name parameter B 3 Image Save Mode parameter B 3 interop
27. ANTIES 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 303539 A Rev 00 iii its own data and information and for maintaining adequate procedures apart from the Software to reconstruct lost or altered files data or programs 4 Limitation of liability INNO 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 Govern
28. Control Table By default the DCM does not create the RMON host control table when it boots If your RMON network management application does not enable and disable its own host configuration during normal operation you may need to enable the DCM to create it The DCM allows only one instance of the host control table Using the BCC To enable the creation of the RMON host control table navigate to the rmon control base module or rmon control expansion module context for example box rmon control expansion module and enter host control enabled For example the following command line enables the creation of the RMON host control table allowing the DCM to create default host entries in this table rmon control expansion module host control enabled rmon control expansion module To disable the creation of the RMON host control table navigate to the rmon control base module or rmon control expansion module context for example box rmon rmon control expansion module and enter host control disabled For example the following command line disables the RMON host control table preventing the DCM from creating default host entries in this table rmon control expansion module host control disabled rmon control expansion module 4 14 303539 A Rev 00 Customizing a DCM for RMON and RMON2 Using Site Manager To enable or disable the creation of the RMON host control table complete the following steps Site Manager
29. EE NEES C 12 POSTO OUD ir EAE E C 13 HostihoN GOU asri C 14 PST GOUD sirosis iaiia i a C 14 Fiter and Capluro CS a satis cia ten tinea sa cattnd eaaa a tamales RER C 15 Alarm and Event GOUS sicccsiiisinieesiiainensesadainnssriddiennesinabieneectaaninbeastumicammnaiaaa onl 303539 A Rev 00 vii Appendix D Upgrading the DCM Software Image Verifying Minimum DCM Requirements A A EA E seeds ebpetguntvanleeiadsipanctadereds D 1 Upgrading the DCM Software Mage iroriiiiisrirrin innisin innana A ARA D 2 Usma miie Manada cs daz acatcressacasinnaasannineGasguouiia iden asada mea aa eae eAeIE D 3 Using the Technician IMC AGS seisminis anneanne RA aE EESE D 5 Sample Display domiload Dal sensisset D 7 Index viii 303539 A Rev 00 Figures Figure 1 1 RMON and RMON2 in the OSI Model ETEA AA E E A EA 1 4 Figure 1 2 RMON RMON2 MIB TOE sccsccnesssciceactaseacecaasiecsetecssieuttnnedscnosicedalusrmenenteanree TE Figure 1 3 RMONIRMONZ Architecture se iiriniiisniiruisriransaiat rasani kaieran 1 10 Figure C 1 Protocol Directory Statisties oriire aaa C 7 Figure 6 2 Protocol Distribution StalistleS sosiscccscesassccteeitacenecsacaetnseaiesermenssinsintasanazeen nO Figure C 3 Application Layer Matrix Statistics cccceceeceseeeeeeeeeeeeeteeeeeeesaaeeeeees C 10 Figure D 1 Choosing DCMMW Global Configuration Parameters 0 0 D 3 Figure D 2 Edit Base Module DCM Parameters Window cc ccccsseseteeeeeeeteeeees D
30. Enable Disable Specifies whether 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 host 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 303539 A Rev 00 B 5 Configuring RMON and RMON2 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID RMON Default Matrix Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM or Expansion Module DCM Disable Enable Disable Specifies whether 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 matrix 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 RMON Object Support Configuration Manage
31. MON tools see Table 1 4 to configure retrieve and view these RMON statistics Complete support for all nine RMON groups and ARN with for seven RMON2 groups Ethernet DCM AN ANH and ARN 100 with Ethernet expansion module and Ethernet DCM Using Site Manager or the BCC you must enable the Ethernet DCM see Chapter 2 This action enables the following subagents on the router e Ethernet DCM DCM middleware DCMMW e RAESA Use RMON tools in Optivity Analysis for Windows NT to configure retrieve and view RMON and RMON2 statistics For more information about configuring DCM enabled RMON see Chapter 2 Starting RMON and RMON2 on AN ANH and ARN Routers For information about configuring mini RMON on an ARN 100 router see Chapter 3 Configuring Mini RMON on an ARN 100 Router 303539 A Rev 00 RMON and RMON2 Overview RMON and RMON2 Architecture The Bay Networks RMON and RMON2 architecture consists of the following components AN ANH and ARN base modules and ARN Ethernet expansion modules which reside on the router DCM which physically attaches to the router s base module and contains its own flash memory module DCM agent software which operates on the Ethernet DCM Data collection module middleware DCMMW which operates on the router s base module RMON agent software which operates on the router s base module Network management software which resides
32. MON2 Using the BCC Before you can configure the DCM boot image on the router make sure that the config mode parameter is set to shared memory Then configure the DCM boot image by specifying an explicit value for the following required parameters image name boot option and save mode To configure the DCM boot image on the router navigate to the dcm base module or dcm expansion module context for example box dcm expansion module and enter the following required parameters image image name lt volume_number filename gt boot option lt option gt save mode lt mode gt Volume_number filename is the volume and the file name of the image that you want the DCM to boot Option is either local or download Mode is either save or no save For example the following command sequence sets the config mode parameter to shared memory then specifies that the DCM boots with the image file _ 40 0bj on volume 1 of the router s flash memory download and saves the DCM image in the DCM flash memory image base module image image name 1 11_140 obj boot option download save mode save image base module Using Site Manager To configure the DCM boot image on the router 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
33. N e Matrix 303539 A Rev 00 C 1 Configuring RMON and RMON2 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 e A list of 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 the periodic statistical sampling of data from networks and specifies control parameters such as the frequency of data sampling
34. Procedure You do this System responds 1 In the Configuration Manager window choose Platform The Platform menu opens 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 Expansion Module DCM The Edit Base Module DCM Parameters window or the Edit Expansion Module DCM Parameters window opens Set the Enable Disable parameter to Disable Click on Help or see the parameter description on page B 2 Click on OK You return to the Configuration Manager window Repeat steps 1 through 4 then go to step 8 The Edit Base Module DCM Parameters window or the Edit Expansion Module DCM Parameters window opens Set the Configuration Mode parameter to Shared Memory Click on Help or see the parameter description on page B 4 Set the RMON Default Host parameter Click on Help or see the parameter description on page B 5 10 Set the Enable Disable parameter to Enable Click on Help or see the parameter description on page B 2 11 Click on OK You return to the Configuration Manager window 303539 A Rev 00 4 15 Configuring RMON and RMON2 Enabling and Disabling the RMON Matrix Control Table By default the DCM does not create the RMON matrix control table when it boots If your RMON network management application does not enable and disable its own matr
35. Rev 00 RMON and RMON2 Overview Table 1 4 Optivity Analysis for UNIX RMON Based Tools continued RMON Tool Name Purpose Possible Uses Special Features MIB Group Network Layer View conversation pairs Analyze traffic flow to Shows statistics on Network Matrix RMON2 across router boundaries predict bottlenecks and plan for growth traffic between pairs of hosts in out packets octets and so forth Layer Matrix the relationship between end stations including relative traffic volumes and the primary network layer protocol used conversations that require attention View statistics for specific hosts and conversations Start other RMON tools directly from TrafficMan map map on a variety of features including upper layer protocols such as FTP and HTTP Learning Tool Automatically learn Create normative model Learns automatically Ancillary to normal network comprising threshold Alarm and behavior on all values for all segments Flexible sample Event segments Builds model statistically TrafficMan Graphically represent Identify hosts or Filters TrafficMan N A For detailed information about how to install configure and customize the RMON based tools for use with RMON and RMON2 see Using Optivity Analysis 8 x Optivity LAN Optivity LAN offers two tools you can use to monitor network statistics collected by the RMON agent Threshold Manager and
36. Set Bay Networks Trap Monitor Filters Shows menu paths Example Protocols gt IP identifies the IP option on the Protocols menu Separates choices for command keywords and arguments Enter only one of the choices Do not type the vertical line when entering the command Example If the command syntax is show ip alerts routes you enter either show ip alerts or show ip routes but not both xiv 303539 A Rev 00 Preface Acronyms ASN 1 CMIP DCM DCMMW DLCI DRAM FDDI IP LRU MAC MIB NVRAM PDU PVC RFC RIP RMON SNMP TFTP UDP WAN abstract syntax notation Common Management Information Protocol data collection module data collection module middleware 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 Request for Comments Routing Information Protocol remote monitoring Simple Network Management Protocol Trivial File Transfer Protocol User Datagram Protocol wide area network 303539 A Rev 00 XV Configuring RMON and RMON2 Bay Networks Technical Publications You can now print Bay Networks technical manuals and release notes free directly from the Internet Go to support baynetworks com library pubs Find the Bay Networks product for which you need documentation Then l
37. als 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 PORTIONS 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 ji 303539 A Rev 00 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 cre
38. aps can be delivered by the RMON agent to multiple management stations For information about setting trap destinations see Configuring SNMP BootP DHCP and RARP Services 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 Each entry in the event table identifies an event that can be triggered and indicates an action The event can trigger any of the following actions e The system sends an SNMP trap to the network management station e 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 system sends an SNMP trap and logs the 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 including 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 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 303539 A Rev 00 C 5 Configuring RMON and RMON2
39. apter includes the following information Topic Page RMON MIB 1a RMON2 MIB 1 3 RMON and RMON2 Support on Bay Networks Routers 1 8 RMON and RMON2 Architecture 1 RMON MIB RMON is a standard MIB that defines current and historical statistics and control objects at the media access control MAC layer 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 The RMON MIB provides a standard method for monitoring the basic operations of the Ethernet network providing interoperability between Simple Network Management 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 enabling 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 303539 A Rev 00 1 1 Configuring RMON and RMON2 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 net
40. as a client runs on a network management station which can be a workstation or PC running UNIX or Windows Many RMON clients located at various locations can simultaneously retrieve information from an AN ANH or ARN router located on a specific LAN segment within an internetwork Optivity Analysis for Windows NT is an example of an RMON network management application After you enable the Ethernet DCM on a router and the Ethernet DCM is collecting statistics you can use the following network management applications to view analyze and monitor network RMON and RMON2 statistics e Optivity Analysis for UNIX and Optivity LAN applications which are part of the Optivity Enterprise network management suite e Optivity Analysis for Windows NT Optivity Analysis for UNIX Optivity Analysis for UNIX is a set of graphical network management applications based on RMON These Optivity applications offer powerful RMON based tools that let you view statistics for an enterprise wide internetwork for specific LAN segments within an internetwork or for hosts on a LAN segment Each RMON tool is a complete application that represents an intelligent implementation of the RMON and RMON2 MIB groups 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
41. ates that the DCM saves the active image to its local flash memory save or that the DCM does not save the DCM boot image no save if the save mode is no save Indicates that the DCM uses the default configuration information in the DCM local flash memory local or the router s flash memory stored in DCM DRAM shared Indicates that the DCM saves the configuration information to its local flash memory save or that the DCM does not save the DCM configuration information no save Maximum number of host addresses to be collected in each entry of the RMON host control table Addresses range from 100 through 8128 Configured number of hosts in each RMON host control entry on the DCM Indicates whether the creation of the RMON host control table is enabled or disabled Indicates whether the creation of the RMON matrix control table is enabled or disabled Displays information about the DCM image for all Ethernet DCMs configured on the AN ANH or ARN router including agent image version boot option image name and image save mode The output includes the following information Data Collection Module Agent Image Version Boot Option Image Name Image Save Mode Number that corresponds to either a base module 1 or an expansion module 2 Version number of the DCM agent software Indicates that the DCM uses the image file in its own flash memory local for booting or a boot image copied from the AN ANH and
42. ation 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 that 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 For information about setting the RMON Max Host parameter see Modifying Default RMON MIB Group Parameters on page 4 12 Matrix Group When you enable the Ethernet DCM the default setting for the RMON Default Matrix parameter is Disable To create a matrix configuration set the RMON Default Matrix parameter to Enable see Modifying Default RMON MIB Group Parameters on page 4 12 Some RMON network management applications expect the DCM to set up a matrix configuration but others set up their own configurations Note The RMON agent allows you to create only one matrix configuration Make 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 memor
43. configuration information to its local flash memory save or that the DCM does not save the DCM configuration information no save dcm rmonconfig Displays information specific to the RMON default configuration including maximum number of hosts per entry configured number of hosts per entry and the status of the host control table and matrix control table A 4 303539 A Rev 00 Monitoring the DCM Using the BCC show Command The output includes the following information Data Collection Module RMON Object Support Max hosts per entry Configured hosts per entry Create Host Control Table Create Matrix Control Table Config Save Mode Number that corresponds to either a base module 1 or an expansion module 2 Indicates whether the Ethernet DCM is collecting RMON or RMON2 statistics Maximum number of host addresses collected in each entry of the RMON host control table Configured number of hosts in each RMON host control entry on the DCM Indicates whether the creation of the RMON host control table is enabled or disabled Indicates whether the creation of the RMON matrix control table is enabled or disabled Indicates whether creation of the DCM saves the configuration information to its local flash memory save or that the DCM does not save the DCM configuration information no save 303539 A Rev 00 Appendix B Ethernet DCM Parameters This appendix contains reference information ab
44. d RMON2Z in the OSI Model 1 4 303539 A Rev 00 RMON and RMON2 Overview With RMON2 you can also troubleshoot network problems faster and more accurately using statistics from the network layer matrix table which shows the protocol specific traffic between communicating pairs of systems For example with RMON you can learn that a particular server is inactive because it fails to transmit packets With RMON2 you can diagnose the more difficult problem that occurs when the system is active but a particular protocol stack is malfunctioning RMON2 provides address translation capabilities that bind MAC layer addresses to network layer addresses making all addresses easier to read and remember You can detect duplicate addresses which helps to solve a common problem that disrupts network routers and virtual LANs RMON2 allows you to collect the historical data of any counter in the system rather than only a predefined set of statistics For example you can collect historical data on a specific file server or a specific router to router connection RMON2 also lets you configure more flexible and efficient filters to support higher layer protocols Bay Networks implements seven RMON2 MIB groups in its RMON2 agent for BayStack AN ANH and ARN routers Table 1 2 summarizes the RMON2 MIB groups For more detailed information about the RMON2 MIB groups see Appendix C RMON and RMON2 MIB Groups Table 1 2 RMON2 MIB Gro
45. data capture or instance counts to isolate specific portions of your network 303539 A Rev 00 RMON and RMON2 Overview RMON2 MIB RMON2 is a standard MIB that extends the scope of the RMON MIB beyond the MAC layer to provide statistics on network and application layer traffic layers 3 through 7 of the OSI model By monitoring higher layer protocols you can get an internetwork or enterprise wide view of network traffic enabling you to e Identify which systems are communicating with which servers and what applications they are using e Identify which devices are sending and receiving which types of traffic Using this knowledge of traffic patterns you can strategically place users and resources in the correct location on the network to optimize performance and reduce costs Figure 1 1 shows the level of visibility that RMON and RMON provide within a LAN segment and within a network at each layer of the OSI model 303539 A Rev 00 Configuring RMON and RMON2 Layer 4 7 RMON2 Application layer RMON2 Network layer RMON MAC layer Hub Physical layer Key C1 client 1 S1 server 1 C2 client 2 S2 server 2 C3 client 3 S3 server 3 RMNO003A Figure 1 1 RMON an
46. dit 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 acquired 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
47. e Edit Base Module DCM Parameters window or the Edit Expansion Module DCM Parameters window opens 13 Click on OK to accept the default configuration parameters You return to the Configuration Manager window 2 8 303539 A Rev 00 Starting RMON and RMON2 on AN ANH and ARN Routers When you enable the Ethernet DCM the RMON Object Support parameter is set to RMON2 by default allowing the Ethernet DCM to collect both RMON and RMON2 statistics You can use Optivity Analysis for UNIX or Optivity Analysis for Windows NT to view and analyze RMON and RMON2 statistics Customizing the Ethernet DCM For information about customizing the DCMMW configuration parameters see Chapter 4 Customizing a DCM for RMON and RMON2 303539 A Rev 00 2 9 Chapter 3 Configuring Mini RMON on an ARN 100 Router On the ARN 100 router Bay Networks provides a condensed version of the RMON MIB standard called mini RMON Mini RMON supports the following four RMON MIB groups e Statistics e History e Alarm e Event Unlike the AN ANH and ARN routers which use an installed Ethernet DCM to collect RMON statistics the ARN 100 router contains built in RMON capability on the router s base module Using Site Manager to configure the ARN 100 base module you can enable the ARN 100 to collect RMON statistics After you configure the ARN 100 router to collect RMON statistics you can view these statistics using the RMON
48. e Technician Interface does not verify that the value you enter for a parameter is valid Entering an invalid value can corrupt your configuration 4 20 303539 A Rev 00 Customizing a DCM for RMON and RMON2 e Enable disable and reboot the Ethernet DCM See Using Technician Interface Software for information about using the enable disable demmw 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 303539 A Rev 00 4 21 Appendix A Monitoring the DCM Using the BCC show Command This appendix describes how to use the BCC show command to obtain DCM configuration interface and statistical information from the management information base MIB The type and amount of data displayed depend on the specific DCM settings you want to view This chapter includes descriptions of the show rmon dem command Note Enter all commands using lowercase letters 303539 A Rev 00 A 1 Configuring RMON and RMON2 show rmon dcm The show rmon dem lt option gt command displays configuration status and statistical information about the DCM configured on an AN ANH or ARN router The show rmon dcm command supports the following subcommand options e summary e image e dcmconfig e rmonconfig
49. e e ape ee A N I ty Seer rr mttaer A E er ern tren rt renner C 2 ISTRY GOUD sgasscarsreccedynibikdioiarhanndadiey aeni a a C 2 POSTO OUD eia ter ncre rte ter P eT er cr Tree errr enter ere error treer eee Tre rr C 3 POUT TOUD aonocaiiisi a a nua C 3 PBT GOUD aceaachossredascennteaszcsartlaicanaecgaieamneniclgasrtedacuonandiauunne rascunontcnnnrannindanrane C 3 Filler OTUD anrora EOE ais C 3 Cape CaCI D125 Saesctayvr acocmenea nacieonne uo ue pone Mesaonet a a a PLAC GOUD sarasah anea a C 4 EG cel geen renee herman rr A C 5 Event Trap Considerations sxcsescssssccenerssscteroeassonenorass E E E amen ee RAKON ANE POURS occa cnneatiorneniarnane Aenean aS C 6 Protocol MONCH GOUD sare ciakweasieiisseas shassleadcnanueraen dusvunesnta dethaaasa a AN C 7 Piotocol Distribution GROUP ssisrisiis siimsisinii csaa E C 8 Address Mapping Ou Backs radical de e a C 9 Network Layer Host GUP ccnccsetsnnsautaarnobndeadeountaagaranoniae nanuateaemiiemmnaaninmeniian wre Applicaton Layer Host IOUS coacdtadtsanccsssemsnnccetemnandectammrcdacebantnantentannsavetannnrccnanae C 9 Network Layer Matrix GOUD icc cdepnns ce cududanciveduecuesd eainiie diy C 9 Application Laver Matrix Group xcco 5 csebie iisasensetadaiorverssstueieoeilancneeindsibieriadidermsnaan er WO Memory Requirements tor RMON Groups ssiciiccessccscsssrsaccatsentetead esan C 11 jbl Coiba S ge pnp ep rene ey RCne PET Renee reer rect ere er Tye Dra cere mrer tren ren ter R C 12 PIRON GOUD coiere a EE
50. 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 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 Netwo
51. ent JaddressMap 3 protocolDist Statistics Figure 1 2 RMN0002A RMON RMON2 MIB Tree 303539 A Rev 00 Configuring RMON and RMON2 RMON and RMON2 Support on Bay Networks Routers Table 1 3 Table 1 3 summarizes the three levels of RMON and RMON support that Bay Networks offers and describes how Bay Networks implements this support Summary of RMON and RMON2 Support RMON Support Router Model Configuration Tasks groups only RMON alarm and event All routers no Ethernet DCM You must enable the RMON alarm and event subagent RAESA on the router using Technician Interface commands see Using Technician Interface Software After you enable alarm and event groups on the router you can configure the Threshold Manager in Optivity LAN to set alarms on any integer based object in the MIB tree Then you can configure the Fault Correlator tool in Optivity LAN to receive traps when the threshold is exceeded Statistics e History Alarm Event Mini RMON which ARN 100 includes built in RMON no Ethernet DCM capability for the following RMON MIB groups Use Site Manager to enable RMON statistics on the ARN 100 base module see Chapter 3 This action loads the RMONstat subagent which contains both the statistics and history groups It also loads the RAESA subagent which contains the alarm and event groups Use Optivity Analysis R
52. er e Install the router refer to the installation guide that came with your router e Connect the router to the network and create a pilot configuration file refer to Quick Starting Routers or Configuring BayStack Remote Access Make sure that you are running the latest version of Bay Networks BayRS and Site Manager software For information about upgrading BayRS and Site Manager see the upgrading guide for your version of BayRS 303539 A Rev 00 xiii Configuring RMON and RMON2 Text Conventions This guide uses the following text conventions angle brackets lt gt bold text italic text screen text separator gt vertical line 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 the command syntax is ping lt ip_address gt you enter ping 192 32 10 12 Indicates text that you need to enter and command names and options Example Enter show ip alerts routes Example Use the dinfo command Indicates file and directory names new terms book titles and variables in command syntax descriptions Where a variable is two or more words the words are connected by an underscore Example If the command syntax is show at lt valid_route gt valid_route is one variable and you substitute one value for it Indicates system output for example prompts and system messages Example
53. erability issues for RMON C 11 matrix group RMON described C 3 enabling matrix configuration 4 16 memory requirements C 14 memory use for RMON C 11 mini RMON 3 1 N network layer host group RMON2 C 9 network layer matrix group RMON2 C 9 0 Optivity Analysis for UNIX 1 12 Optivity Analysis for Windows NT 1 16 Optivity LAN 1 15 Index 2 P product support xvi protocol directory group RMON2 C 7 protocol distribution group RMON2 C 8 publications Bay Networks xvi R RFC 1757 1 1 RFC 2021 1 11 RMON control parameters C 2 control tables C 2 data tables C 2 interoperability issues C 11 memory use C 11 RMON Default Host parameter B 5 RMON Default Matrix parameter B 6 RMON Max Host parameter B 5 RMON MIB described 1 1 modifying RMON default parameters 4 12 RMON MIB groups 1 2 C 4 RMON network management software described 1 12 implementation of RMON MIB groups C 11 RMON Object Support parameter B 6 RMON RMON2 Bay Networks implementation 1 8 components 1 9 customizing parameters 4 3 specifying data collection type 4 3 starting AN ANH 2 4 ARN 2 8 preparing a configuration file 2 4 RMON2 1 3 RMON MIB groups described 1 5 RMON2 MIB groups described C 6 303539 A Rev 00 router hardware and software requirements AN ANH 2 2 ARN 2 3 S Save Configuration Info parameter B 4 show commands ethernet A 2 Simple Network Management Protocol SNMP 1 1 s
54. es 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 C 16 303539 A Rev 00 Appendix D Upgrading the DCM Software Image This appendix describes how to upgrade the DCM software image on BayStack routers using Site Manager or the Technician Interface This appendix includes the following information Topic Page Verifying Minimum DCM Requirements D 1 Upgrading the DCM Software Image D 2 Verifying Minimum DCM Requirements To verify the minimum DCM hardware and software requirements 1 Establish a Technician Interface session on the router 2 Verify the correct DCM hardware revision by entering the following command 1 TN get wf DCMEntry wfDCMhwRev The Technician Interface displays information similar to the following wfDCMEntry wfDCMhwRev 1 E wfDCMEntry wfDCMhwRev 2 E If the Hardware Revision line indicates C or earlier you must upgrade to DCM Hardware Revision E 303539 A Rev 00 D 1 Configuring RMON and RMON2 3 Display the current version of DCM agent
55. esponds 1 From the Site Manager main menu The Tools menu opens choose Tools 2 Choose Configuration Manager The Configuration Manager window opens continued 2 4 303539 A Rev 00 Starting RMON and RMON2 on AN ANH and ARN Routers Site Manager Procedure continued You do this System responds 3 Choose Local File Remote File or Dynamic Site Manager prompts you to choose a configuration file 4 Select the configuration file and click on OK The Configuration Manager window opens displaying the router models For information about Site Manager and how to work with configuration files see Configuring and Managing Routers with Site Manager Configuring an Ethernet DCM for AN ANH Routers Before you can configure an Ethernet DCM on an AN ANH router you must configure IP and SNMP on the router see Configuring SNMP BootP DHCP and RARP Services When you configure the Ethernet DCM for an AN ANH router you create the DCM middleware DCMMW configuration using the default parameter values For information about modifying the default values see Chapter 4 Customizing a DCM for RMON and RMON2 For an AN ANH router you can only configure a DCM base module Using the BCC To configure an Ethernet DCM for an AN ANH router 1 Navigate to the root box level and enter RMON configuration mode rmon 2 Set the module type for the DCM that you want to con
56. figure by entering dcm dem id lt module gt Module is either base module or expansion module 303539 A Rev 00 2 5 Configuring RMON and RMON2 For example the following command line configures the DCM base module on an AN router rmon dcm dcem id base module dcm base module The following command line configures the DCM expansion module on an ARN router rmon dcm dcem id expansion module dcm expansion module Using Site Manager To configure an Ethernet DCM for an AN ANH router complete the following steps Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose the AN router model 2 Click on Confirm 3 Choose a net module for the DCM for example 8pt EHub 3S N11 DCM then click on OK 4 Choose the link or net module connector The Select Protocols window opens on which you are configuring the Ethernet DCM for example XCVR then click on OK 5 Choose IP then click on OK The IP Configuration window opens 6 Click on OK You return to the Configuration Manager window 7 Choose Platform The Platform menu opens 8 Choose DCM 11 0 and later The DCM 11 0 and later menu opens 9 Choose Create Base Module DCM The Edit Base Module DCM Parameters window opens 10 Click on OK to accept the default configuration parameters You return to the Configuration Manager window
57. ft MS MS DOS Win32 Windows and Windows NT are registered trademarks of Microsoft Corporation 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 subparagraph c 1 4i 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 may be 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 materi
58. gle LAN segment RMON on groups of LANs RMON or on an enterprise network RMON2 The DCM agent stores the data locally in the Ethernet DCM according to the RMON specification defined in RFC 1757 or the RMON2 MIB specification in compliance with RFC 2021 You can enable multiple DCM agents running on different segments of the network with a single network management station controlling and accessing them DCM Middleware DCMMW To communicate with the DCM software on the Ethernet DCM the router uses a software subsystem the DCM middleware DCMMW This software subsystem enables and configures an installed Ethernet DCM and allows you to modify the Ethernet DCM configuration boot the Ethernet DCM download the DCM image from the base module to the Ethernet DCM and disable the Ethernet DCM using Site Manager or the BCC You can use an SNMP based network management application that supports RMON to view RMON and RMON statistics RMON Agent Software The RMON agent software resides on the router s base module and supports the alarm and event groups on all Bay Networks routers The RMON agent software also supports the statistics and history groups on the ARN 100 router and communicates with the DCMMW software subsystem to access RMON and RMON2 data collected by the Ethernet DCM 303539 A Rev 00 1 11 Configuring RMON and RMON2 RMON Network Management Software An RMON network management software application also known
59. hosts complete the following steps Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Platform The Platform menu opens 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 Expansion Module DCM The Edit Base Module DCM Parameters window opens or the Edit Expansion Module DCM Parameters window opens Set the Enable Disable parameter to Disable Click on Help or see the parameter description on page B 2 Click on OK You return to the Configuration Manager window Repeat steps 1 through 4 then go to step 8 The Edit Base Module DCM Parameters window opens or the Edit Expansion Module DCM Parameters window opens Set the Configuration Mode parameter to Shared Memory Click on Help or see the parameter description on page B 4 Set the RMON Max Host parameter Click on Help or see the parameter description on page B 5 10 Set the Enable Disable parameter to Enable Click on Help or see the parameter description on page B 2 11 Click on OK You return to the Configuration Manager window To verify the number of hosts configured check the MIB object wfDCMmsRMONHost using the Site Manager Statistics tool 303539 A Rev 00 4 13 Configuring RMON and RMON2 Enabling and Disabling the RMON Host
60. ies the types of packets the Ethernet DCM can capture Filter control parameters such as the minimum length of those packets are stored 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 303539 A Rev 00 C 3 Configuring RMON and RMON2 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 is triggered when the alarm threshold is exceeded The alarm group periodically takes statistical samples from variables in the Ethernet DCM and compares them to previously configured thresholds The Alarm Table stores configuration entries tha
61. iguration set the RMON Default Host parameter to Enable see Modifying Default RMON MIB Group Parameters on page 4 12 Some RMON network management applications expect the Ethernet DCM to set up a host configuration but others set up their own configurations Make sure to set the RMON Default Host parameter according to the expectations of the RMON network management application Note The RMON agent allows you to create only one host configuration gt The host configuration requires 148 bytes The host data requires 105 bytes of memory per host address that 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 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 C 2 shows recommended values for this parameter Table C 2 Maximum Number of Hosts Installed DRAM MB Maximum Hosts 2 4 2 048 5 8 4 096 9 16 8 128 You calculate the total memory in bytes you need for the host data as follows 105 value of the RMON Max Host parameter 303539 A Rev 00 C 13 Configuring RMON and RMON2 HostTopN Group To save memory and increase performance there is no default configur
62. image for example in_2 00 1 obj to a PC or UNIX workstation from e The latest BayRS CD release media e The World Wide Web URL http support baynetworks com software Router Contact the Bay Networks Technical Solutions Center if you do not have access to these sources 2 Transfer the DCM software image from your PC or workstation to the router s flash memory Use the Site Manager Router Files Manager utility 3 Transfer the DCM software image from the router s flash memory to the DCM flash memory as follows In the Configuration Manager window Figure D 1 choose Platform gt DCM 11 0 and later gt Global gt Base Module DCM or Expansion Module DCM Figure D 1 Choosing DCMMW Global Configuration Parameters 303539 A Rev 00 D 3 Configuring RMON and RMON2 The Edit Base Module DCM Parameters window opens Figure D 2 Erabla Diaal le foot Option lenge Home Tenge Sawa Hoda Dontigmratlon Mis tase Conk iguration Info RAH Aas Hoat RAIH Default Homi EMOH Default Matrix RHON Object Support Figure D 2 Edit Base Module DCM Parameters Window 4 Set the Enable Disable parameter to Disable 5 Change the Boot Option from Local to Download This setting specifies that you want the Ethernet DCM to boot the downloaded DCM image from the router s shared memory instead of from the Ethernet DCM s flash memory 6 Inthe Image Name field specify the target volume and the file name of the
63. in the historyControlTable C 2 303539 A Rev 00 RMON and RMON2 MIB Groups The data collection 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 can rank the hosts by the number of errors they generate Control parameters for this group are stored in the hostTopNControlTable and data this group generates is stored 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 are stored in the matrixControlTable When the matrix group receives information from a good packet it places data in both the matrixSDTable and the matrixDSTable Filter Group The filter group specif
64. increments octet and packet counts for all packets with no MAC errors To implement this group you must first implement the Network Layer Matrix group Figure C 3 shows the statistics collected for the Application Layer Matrix group using the Optivity Analysis for Windows NT application fe Hie hed 2 Hati Fie yee Ening avl alaia m id Miaria Hii S Apn Jo Adon 01 T Adee iia a Ade G21 cpa Fn Aache S Ana FE ippa DS Arep E Aata Pi Arg PT Arta Sd Aiai FG Arka FTI E J a a y a a J ad a Figure C 3 At 18 168 1537 152 1 BR T 1216 1 Se WM 3 2o 15i EHI 77 E AZIE 15a Finini Laman mmn iinta Laman Application Layer Matrix Statistics 303539 A Rev 00 RMON and RMON2 MIB Groups Memory Requirements for RMON Groups To optimize the use of your network management applications such as Optivity Analysis for Windows NT you need to understand each RMON group s memory requirements The total amount of available RMON and RMON2 memory depends on the DRAM available on the Ethernet DCM Table C 1 Table C 1 DRAM and RMON Memory Size Installed DRAM MB Available RMON Memory in Bytes 4 2 077 330 8 5 222 034 16 12 561 042 Note 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 sect
65. ion Manager window 303539 A Rev 00 4 5 Configuring RMON and RMON2 Specifying the Configuration Mode By default the Ethernet DCM uses the configuration file in its own local flash memory If you want 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 Shared memory is the area on the Ethernet DCM through which the router s base module and the Ethernet DCM exchange information Using the BCC To specify whether you want to use the configuration information in DCM DRAM or in DCM flash memory navigate to the dcm base module context or the dcm expansion module context for example box dcm base module and enter config mode lt mode_type gt Mode_type is either probe memory local or shared memory For example the following command lets you access the configuration information in DCM DRAM dcm base module config mode shared memory dcm base module The following command lets you access the configuration information in DCM flash memory dcm base module config mode probe memory dcm base module 4 6 303539 A Rev 00 Customizing a DCM for RMON and RMON2 Using Site Manager To specify the configuration mode complete the following steps Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Platform menu opens choose P
66. ions describe how much memory you need to e Configure an RMON group for example the matrix group or the filter and capture groups e Store the data for an RMON group for example the packets on Ethernet DCM captures In the following sections the term 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 303539 A Rev 00 C 11 Configuring RMON and RMON2 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 because the baseline of each statistics counter occurs when you create a configuration You may prefer however to use only one statistics configuration to conserve memory for other RMON groups You need 200 bytes of memory for each statistics configuration Hist
67. ix configuration during normal operation you may need to enable the DCM to create it The DCM allows only one instance of the matrix control table Using the BCC To enable the creation of the RMON matrix control table navigate to the rmon control base module or rmon control expansion module context for example box rmon control expansion module and enter matrix control enabled For example the following command line enables the creation of the RMON matrix control table allowing the DCM to create default matrix entries in this table rmon control expansion module matrix control enabled rmon control expansion module To disable the creation of the RMON matrix control table navigate to the rmon control context and enter matrix control disabled For example the following command line disables the creation of the RMON matrix control table preventing the DCM from creating default matrix entries in this table rmon control expansion module matrix control disabled rmon control expansion module 4 16 303539 A Rev 00 Customizing a DCM for RMON and RMON2 Using Site Manager To enable or disable the creation of the RMON matrix control table complete the following steps Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Platform The Platform menu opens Choose DCM 11 0 and later The DCM 11 0 and later menu opens 3 Choose Global
68. l rmon2 The following command sequence specifies that the Ethernet DCM collects both RMON and RMON2 statistics and display the object support level rmon2 base module rmon2 level rmon rmon2 base module info level rmon 4 4 303539 A Rev 00 Customizing a DCM for RMON and RMON2 Using Site Manager To specify the Ethernet DCM from which you want to collect RMON2 statistics complete the following steps Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Platform The Platform menu opens 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 Expansion Module DCM The Edit Base Module DCM Parameters window or the Edit Expansion Module DCM Parameters window opens 5 Set the Enable Disable parameter to Disable Click on Help or see the parameter description on page B 2 6 Click on OK You return to the Configuration Manager window 7 Repeat steps 1 through 4 then go to step The Edit Base Module DCM Parameters 8 window or the Edit Expansion Module DCM Parameters window opens 8 Set the RMON Object Support parameter Click on Help or see the parameter description on page B 6 9 Set the Enable Disable parameter to Enable Click on Help or see the parameter description on page B 2 10 Click on OK You return to the Configurat
69. latform 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 or the Edit Expansion Module DCM Parameters window opens 5 Set the Enable Disable parameter to Disable Click on Help or see the parameter description on page B 2 6 Click on OK You return to the Configuration Manager window 7 Repeat steps 1 through 4 then go to step The Edit Base Module DCM Parameters 8 window or the Edit Expansion Module DCM Parameters window opens 8 Set the Configuration Mode parameter Click on Help or see the parameter description on page B 4 9 Set the Enable Disable parameter to Enable Click on Help or see page B 2 10 Click on OK You return to the Configuration Manager window Saving the Configuration Information By default the DCM saves the configuration information in DRAM to its local DCM flash memory overwriting the existing configuration file If you do not want to overwrite the DCM configuration file in flash memory configure the DCM so that it does not save the configuration information 303539 A Rev 00 4 7 Configuring RMON and RMON2 Using the BCC To set the save mode for the configuration information navigate to the dcm base module or expansion module context for example box dcm base module and enter save mode lt mode
70. le DCM Save Save No Save Specifies whether 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 overwriting 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 B 4 303539 A Rev 00 Ethernet DCM Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID RMON Max Host Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM or Expansion Module DCM 500 100 to 8128 Indicates the maximum number of host addresses to be collected 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 this 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 8 MB 4096 16 MB 8128 To verify the number of configured hosts 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 RMON Default Host Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM or Expansion Module DCM Disable
71. ment 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 Department 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
72. nd by application within the protocol to obtain an enterprise view of the network RFC 2021 defines the function and organization of the RMON2 MIB groups Bay Networks implements the following seven groups in its RMON2 agent for BayStack AN ANH and ARN routers e Protocol Directory e Protocol Distribution e Address Mapping e Network Layer Host e Application Layer Host C 6 303539 A Rev 00 RMON and RMON2 MIB Groups e Network Layer Matrix e Application Layer Matrix Protocol Directory Group The Protocol Directory group lists the protocols that the Ethernet DCM can monitor These protocols represent different network layer transport layer and higher layer protocols Figure C 1 shows the statistics collected for the Protocol Directory group using the Threshold Manager tool in the Optivity Analysis application Figure C 1 Protocol Directory Statistics 303539 A Rev 00 C 7 Configuring RMON and RMON2 Protocol Distribution Group The Protocol Distribution group collects the relative numbers of octets and packets for the different protocols detected on a network segment An RMON application can use this table to quickly determine bandwidth allocation used by different protocols An entry is made in the table for every protocol in the Protocol Directory table that has been seen in at least one packet Counters are updated in this table for every protocol type that is encountered when parsing a packet but no c
73. new DCM software image in_2 00 1 0bj on the router for example 1 in_2 00 1 o0bj 7 Set the Image Save Mode parameter to Save and click on OK You return to the Configuration Manager window D 4 303539 A Rev 00 Upgrading the DCM Software Image 10 11 If you set the Image Save Mode parameter to No Save the Ethernet DCM boots with the new software image but does not save the image to the Ethernet DCM s flash memory In the Configuration Manager window Figure D 1 choose Platform gt DCM 11 0 and later gt Global gt Base Module DCM or Expansion Module DCM The Edit Base Module DCM Parameters window opens Figure D 2 Set the Enable Disable parameter to Enable and click on OK This action boots the Ethernet DCM with the new DCM software image that you specified using the Image Name parameter and saves the new DCM software image to flash memory if specified Set the Boot Option parameter to Local Choose the Local option after you save the DCM software image to the Ethernet DCM s flash to boot the Ethernet DCM from its own flash memory Click on OK Using the Technician Interface To upgrade the DCM software image in a BayStack router using the Technician Interface 1 Transfer the DCM software image for example in_2 00 1 obj to a PC or UNIX workstation from e The latest BayRS CD release media e The World Wide Web URL http support baynetworks com software Router Contact the Bay
74. o step The Edit Base Module DCM Parameters 8 window or the Edit Expansion Module DCM Parameters window opens Set the Configuration Mode parameter Click on Help or see the parameter description on page B 4 Set the Save Configuration Info parameter Click on Help or see the parameter description on page B 4 Set the Enable Disable parameter to Enable Click on Help or see the parameter description on page B 2 11 Click on OK You return to the Configuration Manager window Configuring the DCM Image on the Router You configure the DCM image on the router by specifying the following required parameters By default the DCM uses the image file in its local flash memory as the DCM boot image The boot image option which specifies whether the DCM boots with the image file in its local flash memory local or with a boot image copied from the router s flash memory card download The router volume and file name for the image you want the DCM to boot The boot image name cannot exceed 255 characters The image save mode which specifies whether or not the DCM saves the active DCM image to its local flash memory By default the DCM saves the boot image file in DRAM to its local flash memory overwriting the existing image file You can choose not to save the DCM boot image file the image remains in DRAM until the next time the DCM boots 303539 A Rev 00 4 9 Configuring RMON and R
75. ocate the specific category and model or version for your hardware or software product Using Adobe Acrobat Reader you can open the manuals and release notes search for the sections you need and print them on most standard printers You can download Acrobat Reader free from the Adobe Systems Web site www adobe com You can purchase Bay Networks documentation sets CDs and selected technical publications through the Bay Networks Collateral Catalog The catalog is located on the World Wide Web at support baynetworks com catalog html and is divided into sections arranged alphabetically e The CD ROMs section lists available CDs e The Guides Books section lists books on technical topics e The Technical Manuals section lists available printed documentation sets Make a note of the part numbers and prices of the items that you want to order Use the Marketing Collateral Catalog description link to place an order and to print the order form How to Get Help For product assistance support contracts or information about educational services go to the following URL http www baynetworks com corporate contacts Or telephone the Bay Networks Technical Solutions Center at 800 2LANWAN xvi 303539 A Rev 00 Chapter 1 RMON and RMON2 Overview RMON and RMON2 are MIB standards developed to provide powerful remote troubleshooting and monitoring within a LAN segment and across an enterprise network This ch
76. odule DCM Parameters window opens 5 Set the Enable Disable parameter to Disable Click on Help or see the parameter description on page B 2 6 Click on OK You return to the Configuration Manager window Specifying RMON or RMON2 Data Collection When you enable one Ethernet DCM using Site Manager default values the DCM collects RMON2 and RMON statistics from the AN ANH or ARN router Although the ARN router supports two Ethernet DCMs it cannot collect RMON2 statistics from more than one Ethernet DCM simultaneously When you enable one Ethernet DCM using BCC default values the DCM collects only RMON statistics You can configure the DCM to collect both RMON and RMON2 statistics but only on one DCM You can specify which Ethernet DCM you want to collect RMON2 statistics from any additional Ethernet DCMs automatically default to RMON 303539 A Rev 00 4 3 Configuring RMON and RMON2 Using the BCC To specify the Ethernet DCM from which you want to collect RMON and RMON2 statistics or just RMON statistics navigate to the rmon control context for example box rmon dcm dcem id base module rmon control and enter rmonz2 level lt statistics gt Statistics is either rmon or rmon2 For example the following command sequence specifies the Ethernet DCM that collects RMON2 statistics and displays the object support level rmon control base module rmonz2 level rmon2 rmon2 base module info leve
77. 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 Software 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
78. oftware requirements AN ANH 2 2 ARN 2 3 statistics group RMON described C 2 memory requirements C 12 support Bay Networks xvi T technical publications xvi technical support xvi text conventions xiv U upgrading DCM boot image determining need for D 1 using Site Manager D 3 using Technician Interface D 5 303539 A Rev 00 Index 3
79. on an RMON network management station The RMON network management station sends SNMP set and get commands requesting information from the DCM agent that resides on the Ethernet DCM on the router The RMON agent sends the requested information to the network management station which then processes and displays this information on its console Figure 1 3 illustrates the components of this architecture The sections that follow describe them in more detail 303539 A Rev 00 Configuring RMON and RMON2 Flash memory Ethernet DCM Base module Network marie management nterprise or station management Workstation software application _ Ethernet LAN segment WAN Workstation LJ Router Ethernet LAN RMON segment data collection i module DCM SNM0013A Figure 1 3 RMON RMON2 Architecture 303539 A Rev 00 RMON and RMON2 Overview Data Collection Module DCM The Ethernet DCM which runs the DCM agent software physically connects to the BayStack router base module and the ARN Ethernet expansion module The Ethernet DCM contains a flash memory module for its own boot image and configuration files DCM Agent Software The DCM agent software resides on a DCM installed on an AN ANH or ARN router The DCM agent continually collects and analyzes Ethernet data in real time on a sin
80. ory 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 called buckets The second configuration provides long term history by sampling statistics every 30 minutes and holding up to 50 buckets Warning 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 for a particular history configuration 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 303539 A Rev 00 RMON and RMON2 MIB Groups Host Group When you enable the Ethernet DCM the default setting for the RMON Default Host parameter is Disable meaning that no host configuration is created To create a host conf
81. ost control table e Whether the DCM creates the RMON host control table when it boots e Whether the DCM creates the RMON matrix control table when it boots For more information about the RMON host control and matrix control tables see RMON MIB Group Controls and Functions on page C 2 Go to the sections that follow to set these RMON MIB group parameters Specifying the Maximum Number of RMON Hosts You can specify the maximum number of host addresses to be collected in each 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 Using the BCC To specify the maximum number of host addresses to be collected in the RMON matrix control table navigate to the rmon control base module or rmon control expansion module context for example box rmon control base module and enter max hosts lt integer gt Integer is the maximum number of host addresses that the DCM collects and stores in the RMON host control table Host addresses range from 100 through 8128 For example the following command line sets the maximum number of hosts in the RMON control table to 300 rmon control base module max hosts 300 rmon control base module 303539 A Rev 00 Customizing a DCM for RMON and RMON2 Using Site Manager To specify the maximum number of RMON
82. otocol continued 303539 A Rev 00 1 13 Configuring RMON and RMON2 Table 1 4 Optivity Analysis for UNIX RMON Based Tools continued RMON Tool Name Purpose Possible Uses Special Features MIB Group Filter Capture Define channels and Capture packets for Flexible channel and Filter and filters analysis of a specific filter editors Capture problem or to provide 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 content pinpointing the source decode 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 Event Run Learning Tool Run Learning Tool with interactively locally local configuration for specific segment Alarm Monitor Continually monitor all Proactive maintenance Monitors all Alarm and segments segments at once Event Quick filter by segment or alarm type Link to Filter Capture and DecodeMan Protocol Provide breakdown by Analyze protocols and N A Protocol Distribution protocol type applications contributing to Distribution RMON2 the overall traffic levels on the network continued 1 14 303539 A
83. ounters are updated for packets with MAC layer errors Figure C 2 shows the statistics collected for the Protocol Distribution group using the Optivity Analysis for Windows NT application f Protecel Stalictics 100 eT TO eS oy pc Encapsulation AN Figure C 2 Protocol Distribution Statistics C 8 303539 A Rev 00 RMON and RMON2 MIB Groups Address Mapping Group The Address Mapping group maps network layer addresses to MAC layer addresses discovered by the Ethernet DCM The network management application can correlate these network layer addresses to names via DNS or another naming utility The Ethernet DCM creates entries in this table for all protocols that it understands If it cannot perform address mapping for the protocol or if this protocol is not a network layer protocol then it does not interpret the addresses Network Layer Host Group The Network Layer Host group records the amount of traffic sent to and from each network layer address discovered by the Ethernet DCM These entries enable the collection of the network and application layer host tables indexed by network addresses Entries in the network layer host table are created on behalf of each entry in this table Additionally if the Ethernet DCM implements the application layer host table entries in that table are created on behalf of this table Application Layer Host Group The Application Layer Host group records the amount of traffic by p
84. out customizing the parameters for the Ethernet DCM to support RMON and RMON2 For each parameter this appendix provides the following information Parameter name Configuration Manager menu path Default setting 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 303539 A Rev 00 B 1 Configuring RMON and RMON2 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Enable Disable Configuration Manager gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM or Expansion Module DCM Enable Enable Disable Enables or disables DCMMW the DCM software subsystem and therefore the DCM To disable the DCM select Disable To reenable the DCM select Enable 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
85. r gt Platform gt DCM 11 0 and later gt Global gt Base Module DCM or Expansion Module DCM RMON2 RMON2 RMON Determines the Ethernet DCM from which you want to collect RMON2 statistics You use this parameter only when you have multiple Ethernet DCMs on a network running RMON2 and you need to choose which Ethernet DCM to collect RMON2 information from Choose RMON to collect RMON2 statistics for the Ethernet DCM Any other Ethernet DCMs default to RMON 1 3 6 1 4 1 18 3 3 2 16 2 1 15 B 6 303539 A Rev 00 Appendix C RMON and RMON2 MIB Groups This appendix defines the RMON and RMON2 MIB groups and provides information about RMON memory usage and interoperability issues RMON functions are described without referring to the low level details of the RMON MIB which are described in RFC 1757 and RFC 2021 This appendix contains the following information Topic Page RMON MIB Groups C 1 RMON2 MIB Groups C 6 Memory Requirements for RMON Groups C1 RMON MIB Groups RMON provides information about layers 1 and 2 of the seven layer OSI network model You can monitor information on an Ethernet network through nine different MIB groups that comprise the RMON specification RFC 1757 defines the function and organization of the RMON MIB groups Bay Networks implements the following MIB groups in its RMON agent for BayStack AN ANH and ARN routers e Statistics e History e Host e HostTop
86. rks 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 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 i 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 WARR
87. rotocol sent from and to each network layer address discovered by the Ethernet DCM To implement this group you must first implement the Network Layer Host group The Ethernet DCM adds all addresses seen as the source or destination address in all packets with no MAC errors to the application layer host table and increments octet and packet counts for all packets with no MAC errors Network Layer Matrix Group The Network Layer Matrix group provides a table of traffic matrix entries that collect statistics for conversations between two network layer addresses This table is indexed first by the source address and then by the destination address to make it convenient to collect all conversations from a particular address The Ethernet DCM adds all pairs of addresses seen in all packets with no MAC errors to this table and increments octet and packet counts for all packets with no MAC errors 303539 A Rev 00 C 9 Configuring RMON and RMON2 Application Layer Matri x Group The Application Layer Matrix group provides a table of application layer traffic matrix entries which collect statistics for conversations of a particular protocol between two network layer addresses This table is indexed first by the source address and then by the destination address to make it convenient to collect all conversations from a particular address The Ethernet DCM adds all pairs of addresses seen in all packets with no MAC errors to this table and
88. s for an installed Ethernet DCM you must temporarily disable the Ethernet DCM from collecting data When you finish modifying the DCMMW configuration parameters you must reenable the Ethernet DCM for these changes to take effect Using the BCC To temporarily disable the DCM from collecting data navigate to the dcm base module context or the dcm expansion module context for example box dcm base module and enter state disabled For example the following command line disables DCM data collection on the base module of an AN ANH router dcem base module state disabled dcm base module The following command line disables DCM data collection on the expansion module of an ARN router dem expansion module state disabled dcm expansion module 4 2 303539 A Rev 00 Customizing a DCM for RMON and RMON2 Using Site Manager To temporarily disable the DCM from collecting data complete the following steps Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Platform The Platform menu opens 2 Choose DCM 11 0 and later The DCM 11 0 and later menu opens 3 Choose Global The Global menu opens 4 Choose one of the following options Base Module DCM Expansion Module DCM If you choose Base Module DCM the Edit Base Module DCM Parameters window opens If you choose Expansion Module DCM for an ARN router the Edit Expansion M
89. scanacnhereanartemeanaaansoniaxadunomoesdaacmncadiaaknonsadadenoontezenion N Specifying RMON or RMON2 Data Collection AAAA T AAAA OE EA AN T 4 3 Specifying the Configuration Mod scccccistccencnciniannca isis aces sseincadcatuancnccabesseadincussesnadooene 4 6 Saving THe Coniguraton MIornmaiOm srrsiirenaiiaiae aaa ai aiiis 4 7 Gontiguring the DOM Image on the ROMET x iccerccassacetinsseicedvossiaed n ai 4 9 Modifying Default RMON MIB Group Parameters ccscccceeeeeeteeeessstteeeeesssteeeeeseee 412 Specifying the Maximum Number of RMON Hosts cccceeeeeeeeeeeeeeseeeeeeeees 4 12 Enabling and Disabling the RMON Host Control Table ccccccceesseeesseeeeseeeees 4 14 Enabling and Disabling the RMON Matrix Control Table c eeeeeeeeeeeeee ee 4 16 Peboatiing the Ethernet DOM sarsnssiuoniscinonian Ramemcetdssudges aaa 4 18 Deleting the Ethernet DCM Software Subsystem cc cceeceeeeeeeeeeeeeeeeeeeeeeneeeaees 4 19 Using the Technician Interface to Manage a DOM ou eececeeesseceeeeeseeeeeeeeeeeeeeeeeeseeeeees 4 20 Appendix A Monitoring the DCM Using the BCC show Command STU MOn ONIN aca sacca a ccnsaccanennaignan eo nausea pieciedicamnemandeca a A 2 vi 303539 A Rev 00 Appendix B Ethernet DCM Parameters Appendix C RMON and RMON2 MIB Groups Freie PIE AOU PE ania eeanir aOR me neem RMON MIB Group Controls and Functions sicsccssissenincasersisaaicersnaisetienaisenracnts C 2 Seoca E
90. sisussesnisnnsesasnnnsnen an 1 11 DOCM AGGM OMN INE suran EN BOM Middeware DOMAI rirorio O 1 11 RMON Agent CONA soni vented tema diecneuan 1 11 RMON Network Management Software cccesssseceeeeeeeeeeeeeeeneeeeeeseeeeeeeeeseeneees 1 12 oii A alate Tor UNIX srsiranian enti canara 1 12 Optivity Analysis for Windows NT wa sciicccscomnsaccedduntacrsedatndecediubeaniaroiieemeasasuebuarees 1 16 Chapter 2 Starting RMON and RMON2 on AN ANH and ARN Routers Router Hardware and Software Prerequisites ccccccesesecceceeeeeeceeeeeeeeeeeeeeeneeaeeeeeneaees 2 2 Saring CUT LAURIE TIOE sansirnar andy eer TANNER 2 4 303539 A Rev 00 V Staing RMON ANd RMONZ sirieias A a 2 4 Piepaning amp Conig ratlon File sirsie einai aa eaa iaaii 2 4 Configuring an Ethernet DCM for AN ANH Routers 2 e ecceeceeeeeeeeeeeeeeneeaaees 2 5 Configuring an Ethernet DCM for ARN Routers cceeseeceeeeeeeeeeeeeeseeeeeeeeneeees 2 7 GUsStonizino the Ethernet DOM cisean in E a 2 9 Chapter 3 Configuring Mini RMON on an ARN 100 Router Coniguration Considerations srissscseiisnonioiai iese eeni aea i aA SS ERSE 3 2 slaring BVI TNIV IY saasina a A E Prepanng a connguraton FIIS sarsie 3 3 Enabling Mini RMON Data Collection scrissi iinitan 3 3 Disabling Min AMON Data Consenonnccccisiennctetacinmcceoaretasviddgedomdcedardedeaapteenccdinmeanaaiatirrae 3 5 Chapter 4 Customizing a DCM for RMON and RMON2 Disabling the Ethernet DOM ci cicccnsaco
91. software Your version of router software determines which command you enter For a router running Router Software Version 11 0 or later enter the following command to display the DCM agent software version 1 1 get wfDCMEntry wfDCMagentImageVersion The Technician Interface displays information similar to the following w DCMmw wfDCMagentImageVersion 1 V1 4 2 There are two entries if there are two DCMs installed on an ARN router For an AN or ANH router running Router Software Version 9 0 or 10 0x enter the following command 1 TN get wfDCMmw wfDCMAgentIimageVersion 0 The Technician Interface displays information similar to the following wfDCMmw wfDCMAgentImageVersion 0 V1 4 2 If the Agent Image Version line does not indicate V1 4 1 or V1 4 2 go to the next section to upgrade the DCM agent software Upgrading the DCM Software Image Upgrading the DCM software image in BayStack routers involves the following tasks Transferring the DCM software image from CD to your PC or UNIX workstation Transferring the DCM software image from your PC or UNIX workstation to the router s flash memory card Transferring the DCM software image from the router s flash memory to the DCM s flash memory D 2 303539 A Rev 00 Upgrading the DCM Software Image Using Site Manager To upgrade the DCM software image in a BayStack router using Site Manager 1 Transfer the DCM software
92. t 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 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 to be notified that an alarm has risen above the threshold you specified You specify falling thresholds when you want to be notified 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 C 4 303539 A Rev 00 RMON and RMON2 MIB Groups e The event that takes place when a rising threshold is crossed e The event that takes place when a falling threshold is crossed Event Group The event group allows for the generation of an SNMP trap a log entry or both for any event you choose An event can occur when the sample variable exceeds the alarm threshold or exceeds a channel match event generated on an Ethernet DCM Tr
93. the following steps 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 Delete DCM The Delete DCM menu opens continued 303539 A Rev 00 4 19 Configuring RMON and RMON2 Site Manager Procedure continued You do this System responds 4 Choose one of the following options Site Manager displays a confirmation e Base Module DCM only prompt Expansion Module DCM only All DCMs 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 5 Click on OK Site Manager completely deactivates all Ethernet DCMs If you need to reactivate the Ethernet DCM after deleting the DCMMW see Starting RMON and RMON on page 2 4 Using the Technician Interface to Manage a DCM You can use Technician Interface commands to e Download a new Ethernet DCM software image See Appendix D Upgrading the DCM Software Image e Display or modify DCMMW configuration parameters See Using Technician Interface Software for information about accessing the DCM MIB using set get and commit commands with the MIB object ID Caution Th
94. ups Group Lets You Protocol Directory Compile a master directory of all protocols that the Ethernet DCM can interpret Protocol Distribution Aggregate statistics on the amount of traffic generated by each protocol per LAN segment or for each layer in the protocol stack Address Mapping Connect port numbers MAC addresses and network addresses Network Layer Host Obtain statistics on the traffic of specific hosts in out packets octets and so forth based on the network layer address continued 303539 A Rev 00 1 5 Configuring RMON and RMON2 Table 1 2 RMON2 MIB Groups continued Group Lets You Application Layer Host Obtain statistics on the traffic of specific hosts in out packets octets and so forth based on the network layer address Network Layer Matrix Obtain statistics on the traffic between pairs of hosts in out packets octets and so forth based on the network layer address Application Layer Matrix Obtain statistics on the traffic between pairs of hosts in out packets octets and so forth based on the application layer address For more information about RMON2 MIB groups see Appendix C RMON and RMON2 MIB Groups Figure 1 2 illustrates the RMON RMON2 MIB tree showing RMON and RMON MIB groups 1 6 303539 A Rev 00 RMON and RMON2 Overview RMON OID Tree Root Org DoD Internet Private ae i Ev
95. work failure Optivity Analysis for Windows NT supports the RMON and RMON MIBs and provides a powerful interface that allows you to poll the RMON devices probes routers and switches on your network You can poll a device and inquire about errors bandwidth and so forth Optivity Analysis for Windows NT can monitor hundreds or even thousands of LAN segments by dividing large complex networks into more manageable domains Optivity Analysis for Windows NT allows you to view traffic statistics generated from a single LAN groups of LANs or an enterprise network With Optivity Analysis for Windows NT you can establish and report on network trends over extended periods and create baselines that set alarms so that an accurate picture of the network can be portrayed For more information about using Optivity Analysis for Windows NT see Using Optivity Analysis for Windows NT Version 1 x 303539 A Rev 00 Chapter 2 Starting RMON and RMON2 on AN ANH and ARN Routers This chapter lists the requirements for starting RMON and RMON2 using Site Manager and the BCC It also includes the procedures for configuring RMON and RMON2 on AN ANH and ARN routers using the default configuration values Note If you want to configure the built in version of RMON on an ARN 100 router with no Ethernet DCM using Site Manager go to Chapter 3 Configuring Mini RMON on an ARN 100 Router This chapter contains the following information
96. work management application such as Optivity LAN or Optivity Analysis TM 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 Bay Networks implements seven RMON MIB groups in its RMON agent and the alarm and event groups in its base module for BayStack AN ANH and ARN routers Table 1 1 summarizes the RMON MIB groups For detailed information about the RMON MIB groups see Appendix C RMON and RMON2 MIB Groups Table 1 1 RMON MIB Groups Group Lets You Statistics Analyze the operational effectiveness of your network Statistics include packets octets broadcasts multicasts dropped packets soft errors and packet size distribution History Analyze traffic trends based on historical data Host Collect information for each host on the segment HostTopN Reduce network overhead by looking at the most active nodes Matrix Report on traffic and errors between any host pair Filter Define criteria for capturing specific information Capture Copy packets for analysis Alarm Report on changes in network characteristics based on thresholds for any MIB variable of interest Event Log events based on thresholds that you define You can use these statistics to initiate functions such as
97. y Answer yes to begin downloading the new image overwriting the existing DCM software image The downloading process takes less than 1 minute Verify that the DCM software image is now Version 2 00 1 See step 3 in the earlier section Verifying Minimum DCM Requirements on page D 1 D 6 303539 A Rev 00 Upgrading the DCM Software Image Sample Display dcmload bat Use this script to download a DCM image from the router s Flash to a DCM board When prompted for the image file name use the form lt volume filename gt When prompted whether to save the image on the DCM Flash answer yes y to overwrite the existing image on the DCM Flash with the new image Answer no n to use the downloaded image once but lose it at the next boot Specify DCM image name volume filename 1 in_2 00 1 0bj Do you want DCM to save this image on its FLASH y n yl y Image Name is 1 dcmboot exe Image will be saved by DCM in its FLASH Do you want to start the download process y n yl Yy Downloading of DCM image has started It will take few seconds to complete 303539 A Rev 00 D 7 A acronyms xv address mapping group RMON2 C 9 alarm group RMON described C 4 memory requirements C 16 application layer matrix group RMON2 C 10 B Boot Option parameter B 2 C capture group RMON described C 4 memory requirements C 15 configuration files preparing for AN ANH and ARN 2
98. y per source destination pair that the Ethernet DCM detects on a segment 303539 A Rev 00 RMON and RMON2 MIB Groups Filter and Capture Groups 3 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 C 3 Table C 3 Default Size for Capture Buffer Installed DRAM MB Default Buffer Size KB 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

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