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Avaya Configuring VRRP Services (308647-14.20 Rev 00) User's Manual

1. 4 Click on OK The MPOA Service Record window opens 5 Go to the next section Adding an MPOA Server MPS on page 2 16 or go to the next step to exit this procedure 6 Click on Done You return to the Edit ATM Connector window 7 Click on Done You return to the Select Connection Type window 8 Click on Done You return to the Configuration Manager window By default when you enter and then exit the MPOA Service Record window you automatically create and enable the MPOA service record using the default settings You need only enter and exit this window one time to create and enable the MPOA service record However for MPOA to operate you must add at least one MPOA server MPS to the service record Note You can have only one MPOA service record per ATM interface However this service record can contain up to four MPSs 308647 14 20 Rev 00 2 15 Configuring VRRP Services Adding an MPOA Server MPS You must add at least one MPS to any MPOA service that you create on an ATM interface Although not operational until fully configured an MPS is enabled by default when you add it to an MPOA service record A new MPS must be in the enabled state so that you can map it to one or more LEC services Then you have to map each MPS to a specific LEC service on the router To add an MPS to an MPOA service complete the following tasks Site Manager Procedure You do this
2. 308647 14 20 Rev 00 A 3 Configuring VRRP Services VRRP Configuration Parameters The VRRP configuration parameters let you customize a virtual router You access these parameters from the IP VRRP Configuration Parameters window Figure A 2 Enable Virtual Router IP Address Priority Advertisement Interval Critical IP Interface IPX Backup Figure A 2 IP VRRP Configuration Parameters Window A 4 308647 14 20 Rev 00 Site Manager Parameters To access the IP VRRP Configuration Parameters window complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose VRRP The IP VRRP Configuration Parameters window opens 4 Click on a virtual router instance ID to The configuration that pertains to the highlight it in the list of virtual routers highlighted virtual router appears The parameter descriptions follow Parameter Enable Path Configuration Manager gt Protocols gt IP gt VRRP Default Enable Options Enable Disable Function Enables or disables a virtual router on an interface Instructions Select Enable to enable a virtual router on an interface Select Disable to disable a virtual router on an interface MIB Object ID 1 3 6 1 4 1 18 3 5 3 25 1 1 2 308647 14 20 Rev 00 A 5 Configuring VRRP Services
3. Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Virtual Router IP Address Configuration Manager gt Protocols gt IP gt VRRP None Any valid IP address in dotted decimal notation Identifies the IP address of the interface that the virtual router backs up Enter the IP address that you want the virtual router to back up Ensure that the primary IP address and the virtual router IP address are on the same subnet If the virtual router IP address is the same as the primary IP address Site Manager automatically sets the priority to 255 so that this VRRP router will always be the master virtual router 1 3 6 1 4 1 18 3 5 3 25 1 1 6 Priority Configuration Manager gt Protocols gt IP gt VRRP 100 1 to 255 Specifies the priority of the virtual router with respect to all virtual routers on the IP interface Enter a priority from 1 to 254 The higher the value you specify the higher the priority of the virtual router Site Manager automatically supplies a priority of 100 for all backup virtual routers If you set the primary IP address to the IP address of the physical interface Site Manager sets the priority to 255 1 3 6 1 4 1 18 3 5 3 25 1 1 8 Advertisement Interval Configuration Manager gt Protocols gt IP gt VRR
4. System responds 1 In the Configuration Manager window click on an ATM link module interface for example ATM1 The Select Connection Type window opens 2 Click on ATM The Edit ATM Connector window opens 3 Click on MPOA Server Attributes The MPOA Server Parameters window opens 4 Click on MPS The MPS List window opens 5 Click on Add The MPS Configuration Parameters window opens 6 Click on OK You return to the MPS List window The MPS List window shows the added MPS 7 Repeat steps 5 and 6 to add additional MPOA servers 8 Click on Done You return to the MPOA Service Record window 9 Click on Done You return to the Edit ATM Connector window 10 Click on Done You return to the Select Connection Type window 11 Click on Done You return to the Configuration Manager window 2 16 308647 14 20 Rev 00 Starting VRRP Services Adding IP RIP or OSPF and NHRP to the LEC Service Record To allow LANE and normally routed traffic to flow through an ATM LEC service and between MPSs enable IP and optionally a routing protocol RIP or OSPF on that IP interface To allow NHRP address resolution requests and replies to flow through the same ATM LEC service and between MPSs you must enable NHRP on that service To add protocols to an existing LEC service complete the following tasks Site Manager Procedure You do this Syst
5. VRID Virtual IP Address VRRP Operational State Advertisement Interval Priority IP address of the physical interface with which the virtual router is associated Virtual router identifier configured in the range of 1 through 255 IP address that the virtual router backs up Current state of the virtual router initialize master or backup The interval in seconds between the transmission of VRRP advertisements from the primary virtual router The priority from 1 through 255 of the virtual router with respect to all virtual routers on the IP interface 308647 14 20 Rev 00 advertisement backup virtual router critical IP interface master virtual router primary IP address priority virtual MAC address Glossary An IP packet periodically broadcast by the master virtual router to prevent a backup virtual router from becoming the master virtual router One of a set of VRRP routers available to become the master virtual router A router may be either the master virtual router or the backup virtual router for many virtual routers A local IP interface associated with a virtual router When the state of this interface changes the virtual router switches roles For example if you designate IP address 1 1 1 1 as the critical IP address for virtual router 1 on router B and IP address 1 1 1 1 fails then virtual router 1 on router B is no longer the master virtual router and a backup virtual router becomes the
6. You return to the IP VRRP Configuration Parameters window 2 20 308647 14 20 Rev 00 Chapter 3 Customizing VRRP To customize VRRP use the information in the following sections Topic Page Disabling and Reenabling a Virtual Router 3 2 Changing the IP Address Backed Up by a Virtual Router 3 3 Setting the Priority of the Virtual Router 3 4 Setting the Advertisement Interval 3 6 Setting the Critical IP Interface Address 3 8 Enabling or Disabling IPX Backup 3 9 Enabling or Disabling IGMP Backup 3 11 Setting the Token Ring Address 3 13 Caution If you are configuring virtual routers on the IP interface used as the Site Manager management console do not add or modify a backup virtual router before you create a master virtual router Otherwise you can lose connectivity to the router when dynamically configuring virtual routers To prevent this use local or remote mode when configuring a virtual router 308647 14 20 Rev 00 3 1 Configuring VRRP Services Disabling and Reenabling a Virtual Router When you first configure a virtual router the virtual router is enabled by default You can use the BCC or Site Manager to disable or reenable a virtual router Using the BCC To disable a virtual router access the virtual router for example box ip vrrp 192 41 31 21 2 vr ip address 192 41 31 22 and enter state disabled To enable a virtual router acce
7. 3 Click on OK You return to the Configuration Manager window 308647 14 20 Rev 00 2 5 Configuring VRRP Services An IP interface is now configured with default values for all interface parameters When you configure an IP interface Site Manager also configures IP globally on the router with default values for all IP global parameters To customize your IP interface by modifying the IP global and interface parameters see Configuring IP ARP RARP RIP and OSPF Services Caution If you are configuring virtual routers on the IP interface used as the Site Manager management console do not add or modify a backup virtual router before you create a master virtual router Otherwise you can lose connectivity to the router when dynamically configuring virtual routers To prevent this use local or remote mode when configuring a virtual router To configure a virtual router using Site Manager complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose VRRP The IP VRRP Configuration Parameters window opens 4 Click on Add The Add Virtual Router window opens 5 Set the following parameters e Primary IP Address Virtual Router ID e Virtual Router IP Address Click on Help or see the parameter descriptions starting on page A 3 6 Cli
8. master virtual router The VRRP router that both assumes responsibility for forwarding data packets received at the MAC address associated with its virtual router and also answers ARP requests for its IP address A router may be the master virtual router or the backup virtual router for many virtual routers The real IP interface address used as the source IP address for the IP packets carrying advertisements The value that determines whether a virtual router serves as the master or backup virtual router The VRRP router with the highest priority becomes the master virtual router The value 255 is reserved for the router that owns the IP address associated with the virtual router The value 0 is reserved for the master virtual router to indicate that it is releasing responsibility for the virtual router The values through 254 are available for VRRP routers backing up the virtual router The default priority is 100 A unicast MAC address associated with each virtual router and used as the source MAC address for VRRP advertisements The master virtual router uses this address instead of its physical MAC address in all communication 308647 14 20 Rev 00 Glossary 1 Configuring VRRP Services virtual router A software defined object managed by VRRP that corresponds to an IP address ona LAN segment A virtual router typically exists on multiple VRRP routers One VRRP router acts as the master virtual router for this IP address and th
9. or zero hop routing Using the BCC Complete the following tasks to start ATM and then configure MPOA and VRRP on a router 1 Add ATM to the configuration Enable ATM signaling Define a LAN emulation client LEC service record Create an MPOA service record Add an MPOA Server MPS Add IP RIP or OSPF and NHRP to the LEC service record Map an MPS to a LEC Add VRRP to the LEC service record Sa a ES 308647 14 20 Rev 00 2 7 Configuring VRRP Services Adding ATM to the Configuration To add ATM to the configuration navigate to the top level prompt and enter atm slot lt s ot_number gt pci slot lt s ot_number gt module lt module_number gt connector lt connector_number gt slot_number is the number of the chassis slot containing the link module pci_siot is the pci slot number of the ATM E1 ATM T1 line module_number is a convention used for other routers within the System 5000 chassis You need only enter a module number when configuring an ATM interface in the System 5000 chassis that is the Model 5782 Centillion Multiprotocol Engine The module number for the ATM interface is always 2 connector_number is the number of a connector on the link module Note The top level prompt for BCC configuration on the System 5000 platform is stack However the remainder of this guide uses the box prompt associated with the BN platform in its examples For example the following commands add ATM
10. 04 00 00 03 00 00 08 00 00 Identifies the token ring functional address for the virtual router ID MAC address that is configured on an IP interface over token ring Specify a unique functional token ring address You must specify a token ring functional address for virtual routers on an IP interface over token ring otherwise VRRP will not function 1 3 6 1 4 1 18 3 5 53 25 1 1 13 A 8 308647 14 20 Rev 00 Appendix B Monitoring VRRP Using the BCC show Commands This appendix describes how to use the BCC show command to obtain VRRP statistical data from the management information base MIB The type and amount of data displayed depend on the specific settings you want to view This appendix includes descriptions of the following show commands Command Page show vrrp critical ip addresses B 2 show vrrp mac addresses B 2 show vrrp summary B 3 Online Help for show Commands To display a list of command options enter show vrrp at any BCC prompt To learn more about any show vrrp command option and its syntax use the question mark command as follows Example bec gt show vrrp critical ip addresses mac addresses summary bec gt show vrrp critical ip addresses show vrrp critical ip addresses vrid lt arg gt primary ip address lt arg gt Deg s 308647 14 20 Rev 00 B 1 Configuring VRRP Services show vrrp critical ip addresses The show vrrp critical ip addresses comm
11. LEC service records 2 9 Index 1 MAC address 1 2 2 2 master virtual router defined 1 2 messaging 1 2 multinetted interface configuring 2 2 P primary IP address 2 2 Primary IP Address parameter A 3 priority of virtual routers defined 1 2 Priority parameter A 6 priority setting 3 4 product support xiv protocol messaging defined 1 2 publications hard copy xiv R redundancy services planning 1 3 router redundancy characteristics 1 3 S service records adding LANE 2 14 defining LEC 2 9 show commands online Help for B 1 show vrrp critical ip addresses command B 2 show vrrp mac addresses command B 2 show vrrp summary command B 3 signaling enabling 2 8 starting IP 2 5 Subnet Mask parameter IP configuration 2 5 support Nortel Networks xiv Index 2 T technical publications xiv technical support xiv text conventions xii Token Ring Address parameter A 8 token ring address setting 3 13 token ring functional address 3 13 Transmit Bcast Addr parameter IP configuration 2 5 U UnNumbered Assoc Address parameter IP configuration 2 5 V virtual router configuring 2 1 disabling 3 2 enabling 3 2 virtual router ID VRID assigning 2 2 Virtual Router ID parameter A 3 Virtual Router IP Address parameter A 3 A 6 virtual router IP address assigning 2 2 VRRP advertisements 3 6 308647 14 20 Rev 00
12. a LAN segment must have the same VRID and virtual router IP address You can however use a VRID on more than one LAN as long as you pair it with a different virtual router IP address Each virtual router is restricted to a single LAN Master Virtual Router The master virtual router is responsible for forwarding the traffic destined for the MAC address associated with the virtual router IP address A VRRP router with the highest priority assumes the responsibilities of the master virtual router When the master virtual router fails one of the backup virtual routers becomes the master virtual router Backup Virtual Routers If the master virtual router becomes unavailable or if it is not functioning normally VRRP dynamically switches over to one of the backup virtual routers in the order of the priority you set If more than one backup virtual router has the same priority the VRRP router with the greater primary IP address becomes the new master virtual router Critical IP Interfaces You can establish a critical IP address which is a physical IP interface on a local router that is not running VRRP If that critical IP interface fails then VRRP switches to another VRRP router Refer to Figure 1 3 on page 1 5 for a sample VRRP configuration using a critical IP interface VRRP Messaging VRRP generates VRRP advertisement messages as IP multicast datagrams enabling VRRP to operate over a variety of multiaccess LAN technologies tha
13. interface address complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose VRRP The IP VRRP Configuration Parameters window opens 4 Click on a virtual router instance ID to The configuration that pertains to the highlight it in the list of virtual routers highlighted router appears 5 Set the Critical IP Interface parameter Click on Help or see the parameter description on page A 7 6 Click on Apply 7 Click on Done You return to the Configuration Manager window 3 8 308647 14 20 Rev 00 Customizing VRRP Enabling or Disabling IPX Backup When the Internetwork Packet Exchange IPX protocol is configured on the same physical interface as VRRP you can enable IPX backup When enabled this feature provides IPX backup when the virtual router is in the master state In this case IPX configured on the physical interface uses the VRRP MAC address instead of the physical MAC address If the virtual router is in the backup state IPX is disabled You can enable or disable IPX backup By default IPX backup is disabled You can enable IPX Backup for one virtual router per interface Using the BCC To enable IPX backup access the virtual router for example box ip vrrp 192 41 31 21 2 vr ip address 192 41 31 22 and enter ip
14. priority is automatically set to the highest priority 255 and the virtual router becomes the master virtual router as soon as it comes up The default priority for all backup virtual routers is 100 You can set the priority for backup virtual routers from 1 to 254 If you assign more than one backup virtual router the same priority the VRRP router with the greater primary IP address takes precedence Using the BCC To change a virtual router s priority access the virtual router for example box ip vrrp 192 41 31 21 2 vr ip address 192 41 31 22 and enter priority lt integer gt integer is the priority from 1 to 255 The priority values 0 and 255 are reserved for the master virtual router the master uses priority 0 to indicate that it is releasing responsibility for the virtual router For example to change the priority to 254 enter the following command vrrp 192 41 31 21 2 priority 254 vrrp 192 41 31 21 2 3 4 308647 14 20 Rev 00 Using Site Manager Customizing VRRP To set a virtual router s priority complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose VRRP The IP VRRP Configuration Parameters window opens Click on a virtual router instance ID to highlight it in the list of virtual routers The configu
15. routes but not both Indicates 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 Set Trap Monitor Filters xii 308647 14 20 Rev 00 separator gt vertical line Acronyms Preface 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 This guide uses the following acronyms ATM ARP BUS ELAN IGMP IP IPX LAN LANE LEC MAC MIB MPC MPOA MPS VRID VRRP asynchronous transfer mode Address Resolution Protocol broadcast and unknown server emulated local area network Internet Group Management Protocol Internet Protocol Internetwork Packet Exchange local area network LAN emulation LAN emulation client media access control management information base MPOA client Multi Protocol Over ATM MPOA server virtual router identifier Virtual Router Redundancy Protocol 308647 14
16. that half of the hosts install a default route to VRRP router A s IP address 1 1 1 1 and the other half install a default route to VRRP router B s IP address 1 1 1 2 Using two different default routes balances the load for outgoing traffic and also provides full redundancy Router A Router B running VRRP running VRRP Caaf ee DEER EE 1 Virtual router 1 Master virtual router for 1 1 1 1 Virtual router 1 h Backup virtual 1 router for 1 1 1 1 pace Virtual router 2 Virtual Router 2 Backup virtual Master virtual router for 2 2 2 2 router for 2 2 2 2 Ve Pg oe tee OES Ne eege e Ea a aol 1 1 IP address IP address 1 1 1 1 1 1 1 2 DG 1 1 1 1 DG 1 1 1 1 DG 1 1 1 2 DG 1 1 1 2 Host Host Host Host 1 2 3 4 Key DG Default gateway VROO02A Figure 1 2 Using VRRP and Performing Load Balancing 1 4 308647 14 20 Rev 00 VRRP Concepts The configuration in Figure 1 3 shows that IP address 1 1 1 1 connects to external networks If that connection fails and the virtual router 1 on router B continues to forward traffic you still lose connectivity to external networks However if you designate IP address 1 1 1 1 as the critical IP address for virtual router 1 on router B and IP address 1 1 1 1 fails then virtual router 1 on router A becomes the master virtual router and begins forwarding traffic 200 200 200 2 Router C 2 2 2 2 1 1 1 2 d Ro
17. this primary IP address matches the virtual router IP address the virtual router will have the highest priority 255 and become the master virtual router Caution You should not configure an Ethernet interface as the master virtual router on an ANH router The Ethernet interface does not go down if you remove the Ethernet cable As a result it remains in the master state Virtual router ID The virtual router ID VRID identifies the virtual router VRRP uses the virtual router ID to calculate the virtual router s virtual MAC address If the virtual router is in the primary virtual router state it responds to all Address Resolution Protocol ARP requests using the IP address of the virtual router with its virtual MAC address not its physical MAC address You cannot change the virtual router ID after you configure a virtual router Virtual router IP address The virtual router IP address identifies the IP address that the virtual router will use You can configure as many as 50 virtual routers To configure a router running over IP see Configuring VRRP Over IP on page 2 3 To configure a router on an ATM network see Configuring VRRP in an MPOA Network on page 2 7 Configuring VRRP on a Multinetted Interface To configure VRRP on a multinetted interface you must Configure a virtual router for each IP address on the multinetted interface that you want to back up Use the same VRID for all the virtual r
18. 01 00 00 03 00 00 02 00 00 03 00 00 04 00 00 03 00 00 08 00 00 For example to set the token ring address enter the following command vrrp 192 41 31 21 2 token ring address 03 00 80 00 00 00 vrrp 192 41 31 21 2 Using Site Manager To set the token ring address complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose VRRP The IP VRRP Configuration Parameters window opens Click on Help or see the parameter description on page A 8 4 Click on a virtual router instance ID to The configuration that pertains to the highlight it in the list of virtual routers highlighted router appears 5 Set the Token Ring Address parameter 6 Click on Apply 7 Click on Done You return to the Configuration Manager window 3 14 308647 14 20 Rev 00 Appendix A Site Manager Parameters This appendix contains the Site Manager parameter descriptions for VRRP services You can display the same information using Site Manager online Help For information about the IP parameters you must set so that you can configure VRRP see Configuring IP ARP RARP RIP and OSPF Services For each parameter this appendix provides the following information e Parameter name e Configuration Manager menu path e Default setting e Va
19. 20 Rev 00 xiii Configuring VRRP Services Hard Copy Technical Manuals You can print selected technical manuals and release notes free directly from the Internet Go to the support baynetworks com library tpubs URL Find the product for which you need documentation Then locate the specific category and model or version for your hardware or software product Use Adobe Acrobat Reader to open the manuals and release notes search for the sections you need and print them on most standard printers Go to Adobe Systems at www adobe com to download a free copy of Acrobat Reader You can purchase selected documentation sets CDs and technical publications through the Internet at the www1 fatbrain com documentation nortel URL How to Get Help If you purchased a service contract for your Nortel Networks product from a distributor or authorized reseller contact the technical support staff for that distributor or reseller for assistance If you purchased a Nortel Networks service program contact one of the following Nortel Networks Technical Solutions Centers Technical Solutions Center Telephone EMEA 33 4 92 966 968 800 2LANWAN or 800 252 6926 Asia Pacific 61 2 9927 8800 China 800 810 5000 North America An Express Routing Code ERC is available for many Nortel Networks products and services When you use an ERC your call is routed to a technical support person who specializes in support
20. 8647 14 20 Rev 00 2 13 Configuring VRRP Services Adding a LANE Service Record To add a LANE service record complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on an ATM link module interface ATM1 The Select Connection Type window opens 2 Click on ATM The Edit ATM Connector window opens 3 Click on Service Attributes The ATM Service Records List window opens 4 Click on Add The ATM Service Record Parameters window opens 5 Click on OK The Select Protocols window opens Exit the Select Protocols window You will add protocols later in Adding IP RIP or OSPF and NHRP to the LEC Service Record on page 2 17 2 14 308647 14 20 Rev 00 Creating an MPOA Service Record Starting VRRP Services To run an MPOA server over ATM you must first create an MPOA service record on an ATM interface Then you add one or more MPOA servers to the MPOA service record To create an MPOA service record complete the following tasks Site Manager Procedure You do this System responds ile In the Configuration Manager window click on an ATM link module interface for example ATM1 The Select Connection Type window opens 2 Click on ATM 3 Click on MPOA Server Attributes The Edit ATM Connector window opens The MPOA Server Parameters window opens
21. BayRS Version 14 20 Part No 308647 14 20 Rev 00 September 2000 600 Technology Park Drive Billerica MA 01821 4130 Configuring VRRP Services NORTEL NETWORKS Copyright 2000 Nortel Networks All rights reserved September 2000 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 Nortel Networks NA 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 The software license agreement is included in this document Trademarks NORTEL NETWORKS is a trademark of Nortel Networks BCN and BLN are registered trademarks and ANH ASN BayRS BCC and System 5000 are trademarks of Nortel Networks 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 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 Notwithstanding any other license agreement that may pertain to or acc
22. IS THE ENTIRE AND EXCLUSIVE AGREEMENT BETWEEN NORTEL 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 NORTEL NETWORKS UNLESS NORTEL NETWORKS GIVES ITS EXPRESS WRITTEN CONSENT INCLUDING AN EXPRESS WAIVER OF THE TERMS OF THIS AGREEMENT iv 308647 14 20 Rev 00 Contents Preface Ee Re e AE xi E KREE geseet eebe eegene xii PCM sacs haasthipih untae aaa xiii Hard Copy Technical Manuals ae E Ee xiv Fon El siaina cede cae ies eee cece ec anes xiv Chapter 1 VRRP Concepts ADOU E 1 1 Pactar Gal FOURS edd ieee aR deeg 1 2 Backup Virtual Routers e KSE EE enee 1 2 RES WOM AGES eege cede ie ei eerie ENEE 1 2 YRRP TSS SING EE 1 2 PUSAN Tour NONO Geer 1 3 E ee TEE 1 3 Chapter 2 Starting VRRP Services Starting Configuration EE 2 1 CNC a PENA E 2 2 Configuring VRRP on a Multinetted Interface cis ciccccsscesscnesasscetccssccssaeccadanetnserezastecnevaccnace 2 2 e el WE GVE E 2 3 Dees Eege eet 2 3 Contiquiing a Physical EE 2 3 Contouring E RE 2 4 Comigurng a Virtual Router seanci aiiai eiae 2 4 EE e EE 2 5 308647 14 20 Rev 00 V Configuring VRRP in an MPOA Network xv VuEOEENKRREEREEEKEREEEREEKESREERE ENER REERENAREREEEEER 2 7 Using the BCC eee seman fe Kaes T iai EE eege 2 7 Adding ATM to the Configurator sieetssdasececcedesitecdad
23. ITY 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 Nortel Networks NA 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 NORTEL NETWORKS WILL PERMIT YOU TO USE THE SOFTWARE If you do not accept ji 308647 14 20 Rev 00 these terms and conditions return the product unused and in the original shipping container within 30 days of purchase to obtain a credit for the full purchase price 1 License grant Nortel Networks NA Inc Nortel 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 a
24. P 1 s 1 to 255 Specifies the interval in seconds between the transmission of VRRP advertisements from the primary virtual router Enter a value from 1 to 255 seconds 1 3 6 1 4 1 18 3 5 53 25 1 1 9 A 6 308647 14 20 Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Critical IP Interface Configuration Manager gt Protocols gt IP gt VRRP 0 0 0 0 none Any valid IP address in dotted decimal notation Identifies an IP address that determines whether the virtual router assumes the role of the master virtual router and is responsible for forwarding traffic If the critical IP address is operating then the virtual router forwards traffic If the critical IP address is down then a backup virtual router assumes the responsibilities of the master virtual router and forwards traffic The critical IP address must be on the same router as the primary IP address Specify an IP address on the same router where the primary IP address resides 1 3 6 1 4 1 18 3 5 53 25 1 1 10 IPX Backup Configuration Manager gt Protocols gt IP gt VRRP Disable Enable Disable Enables or disables IPX backup when IPX is configured on the same physical interface as VRRP When enabled this feature provides IPX backup when the virtual router is in the master state In this case IPX configu
25. P backup is disabled You can enable IGMP Backup for one virtual router per interface Using the BCC To enable IGMP backup access the virtual router for example box ip vrrp 192 41 31 21 2 vr ip address 192 41 31 22 and enter igmp backup enabled To disable IGMP backup access the virtual router and enter igmp backup disabled For example to enable IGMP backup enter the following command vrrp 192 41 31 21 2 igmp backup enabled vrrp 192 41 31 21 2 308647 14 20 Rev 00 3 11 Configuring VRRP Services Using Site Manager To enable IGMP backup complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose VRRP The IP VRRP Configuration Parameters window opens 4 Click on a virtual router instance ID to The configuration that pertains to the highlight it in the list of virtual routers highlighted router appears 5 Set the IGMP Backup parameter Click on Help or see the parameter description on page A 8 6 Click on Apply 7 Click on Done You return to the Configuration Manager window 3 12 308647 14 20 Rev 00 Customizing VRRP Setting the Token Ring Address If you are running VRRP on a token ring network VRRP uses the token ring functional address you provide instead of a virtual ro
26. PS 9 Click on Done You return to the MPS List window 10 Click on Done You return to the MPOA Service Record window 11 Click on Done You return to the Edit ATM Connector window 12 Click on Done You return to the Select Connection Type window 13 Click on Done You return to the Configuration Manager window 308647 14 20 Rev 00 2 19 Configuring VRRP Services Adding VRRP to the LEC Service Record To configure a virtual router using Site Manager complete the following tasks Site Manager management console do not add or modify a backup virtual Caution If you are configuring virtual routers on the IP interface used as the router before you create a master virtual router Otherwise you can lose connectivity to the router when dynamically configuring virtual routers To prevent this use local or remote mode when configuring a virtual router You do this Site Manager Procedure System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose VRRP The IP VRRP Configuration Parameters window opens 4 Click on Add The Add Virtual Router window opens 5 Set the following parameters e Primary IP Address Virtual Router ID e Virtual Router IP Address Click on Help or see the parameter descriptions on page A 3 6 Click on OK
27. Services You must configure IP services on a router before you can configure VRRP This chapter explains how to configure a router running over IP and how to configure a router on an ATM network running MPOA e For information about how to configure IP see Configuring IP ARP RARP RIP and OSPF Services e For information about how to configure ATM see Configuring ATM Services e For information about how to configure MPOA see Configuring MPOA and NARP Services You can create a basic virtual router configuration by supplying only the required configuration information and accepting the default values for all other parameters Starting Configuration Tools Before configuring VRRP refer to the following user guides for instructions on how to start and use the Nortel Networks configuration tool of your choice Configuration Tool User Guide Bay Command Console BCC Using the Bay Command Console BCC Site Manager Configuring and Managing Routers with Site Manager These guides also describe generically how to create and modify a device configuration 308647 14 20 Rev 00 2 1 Configuring VRRP Services Configuring a Virtual Router When configuring a virtual router you must supply the following Primary IP address The primary IP address associates a virtual router with the IP address of the physical interface You cannot change the primary IP address after you configure a virtual router If
28. and displays the local IP interface critical IP address associated with a specific VRRP virtual router or all VRRP virtual routers This command allows for the following command filters flags and arguments primary ip address lt primary_ip_address gt vrid lt vrid gt Displays information about the virtual router associated with the IP address of the physical interface Displays information about the virtual router associated with the specified virtual router identifier The output includes the following information Primary IP Address VRID Virtual IP Address Critical IP Address IP address of the physical interface with which the virtual router is associated Virtual router identifier configured in the range of 1 through 255 IP address that the virtual router backs up IP address that determines whether the virtual router assumes the role of the master virtual router and is responsible for forwarding traffic If the critical IP address is operating then the virtual router forwards traffic If the critical IP address is down then a backup virtual router assumes the responsibilities of the master virtual router and forwards traffic show vrrp mac addresses The show vrrp mac addresses command displays the virtual media access control MAC address and token ring address associated with a specific VRRP virtual router or all VRRP virtual routers This command allows for the following command filters flags and ar
29. ate to that LEC service and enter mpoa server mps name lt mps name gt For example on a System 5000 router the following BCC commands navigate to the LEC service newyork and map the MPS named eastcoast to it stack atm 5 3 1 atm 5 3 1 lec service newyork lec service newyork mpoa server mps name eastcoast mpoa server newyork Adding VRRP to the LEC Service Record To configure a virtual router begin at the top level box prompt and enter ip The IP global prompt appears Note that you can configure a virtual router on an IP interface that does not exist At the IP global prompt enter the following vrrp primary ip address lt primary_ip_address gt vr id lt vr_id gt vr ip address lt vr_ip_address gt primary _ip_address is the IP address of the physical interface with which the virtual router is associated vr_id is the virtual router identifier configured in the range of 1 to 255 vr_ip_address is the IP address that the virtual router uses The primary IP address and the virtual router IP address must form a unique pair and must also be on the same subnet Note You can also configure a virtual router using the shortened command format vrrp lt primary_ip_address gt lt vr_id gt vr ip address lt vr_ip_address gt 308647 14 20 Rev 00 2 11 Configuring VRRP Services For example to configure a virtual router with a primary IP address of 192 41 31 21 a virtual router ID of 2 and a virt
30. ble 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 Nortel Networks of any such intended examination of the Software and may procure support and assistance from Nortel Networks 7 Term and termination This license is effective until terminated however all of the restrictions with respect to Nortel Networks copyright in the Software and user manuals will cease being effective at the date of expiration of the Nortel Networks copyright those restrictions relating to use and disclosure of Nortel Networks confidential information shall continue in effect Licensee may terminate this license at any time The license will automatically terminate if Licensee fails to comply with any of the terms and conditions of the license Upon termination for any reason Licensee will immediately destroy or return to Nortel Networks the Software user manuals and all copies Nortel 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
31. ck on OK You return to the IP VRRP Configuration Parameters window 2 6 308647 14 20 Rev 00 Starting VRRP Services Configuring VRRP in an MPOA Network Before you can configure VRRP in an MPOA network you have to start ATM on the router define a switched virtual circuit SVC service record and select LAN emulation LANE as the data encapsulation type SVCs use signaling messages to dynamically establish maintain and clear a switched virtual connection at the UNI These messages as defined by the Q 2931 standard for signaling protocols allow the router to assess the availability of an ATM end point device establish a connection with that device maintain that connection for the duration of data transfer and then clear the connection when the transfer is complete LANE extends the ATM network to LANs Selecting LANE to run on an SVC service record defines that service record as belonging to an emulated LAN ELAN Any protocols on that service record operate as if they were running over a traditional Ethernet or token ring LAN MPOA operates at layer 3 and enables IP to run over ATM networks MPOA maps routed and bridged traffic flows to ATM SVCs Since this technique maps traffic to virtual channels it removes many performance limitations Instead of individual packets making multiple hops MPOA creates network shortcuts between source and destination clients This is generally referred to as cut through
32. e others act as backup virtual routers VRID The virtual router identifier configured in the range of 1 through 255 The VRID must be unique within the subnet VRRP router A physical router not a virtual one that runs the Virtual Router Redundancy Protocol Typically there are multiple VRRP routers in a network one master router and several backup routers Glossary 2 308647 14 20 Rev 00 A acronyms xiii adding ATM circuit 2 13 service records LANE 2 14 adding a virtual router 3 3 Advertisement Interval parameter A 6 advertisement interval setting 3 6 ATM circuit adding 2 13 starting with BCC 2 7 2 12 backup virtual router defined 1 2 BCC show commands B 1 starting ATM with 2 7 2 12 starting VRRP services 2 4 2 11 C configuring a multinetted interface 2 2 configuring a virtual router 2 1 conventions text xii Critical IP Interface parameter A 7 critical IP interface specifying 3 8 customer support xiv 308647 14 20 Rev 00 Index D disabling a virtual router 3 2 IGMP backup 3 11 IPX backup 3 9 E Enable parameter A 5 enabling a virtual router 3 2 IGMP backup 3 11 IPX backup 3 9 IGMP Backup parameter A 8 IGMP backup enabling or disabling 3 11 IP Address parameter IP configuration 2 5 IP address to be backed up assigning 3 3 IP multicast datagrams 1 2 IP starting 2 5 IPX Backup parameter A 7 IPX backup enabling or disabling 3 9 L
33. efore You Begin Before using this guide you must complete the following procedures For a new router e Install the router see the installation guide that came with your router e Connect the router to the network and create a pilot configuration file see Quick Starting Routers Configuring BayStack Remote Access or Connecting ASN Routers to a Network Make sure that you are running the latest version of Nortel Networks BayRS and Site Manager software For information about upgrading BayRS and Site Manager see the upgrading guide for your version of BayRS 308647 14 20 Rev 00 xi Configuring VRRP Services Text Conventions This guide uses the following text conventions angle brackets lt gt bold text braces italic text screen text 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 p_address gt you enter ping 192 32 10 12 Indicates command names and options and text that you need to enter Example Enter show ip alerts routes Example Use the dinfo command Indicate required elements in syntax descriptions where there is more than one option You must choose only one of the options Do not type the braces when entering the command Example If the command syntax is show ip alerts routes you must enter either show ip alerts or show ip
34. em responds 1 In the Configuration Manager window click on the ATM interface ATM1 on which you want to add protocols The Select Connection Type window opens 2 Click on ATM 3 Click on Service Attributes The Edit ATM Connector window opens The ATM Service Records List window opens Click on the ATM LANE service record to which you want to add protocols Click on the Protocols menu in the upper left hand corner of the window Choose Add Delete The Select Protocols window opens Select IP RIP and NHRP ojo ND Click on OK Set the following parameters IP Address e Subnet Mask e Transmit Beast Addr e UnNumbered Assoc Addr Click on Help or see Configuring IP ARP RARP RIP and OSPF Services for parameter descriptions The IP Configuration window opens 10 Click on OK The NHRP Network Configuration window opens continued 308647 14 20 Rev 00 2 17 Configuring VRRP Services Site Manager Procedure continued You do this 11 Set the following parameters or use default values e NHRP Request Path View Only e Client Enable e Client Reg Interval e Client Hold Time e Client Request Timeout e Client Request Retry e Client Max Pending Request Entries e Server Enable e Server Forward Enable e Server Max Next Hop Entries e Server Max Pending Request Entries Click on Help or see Configuring IP ARP RARP RIP and OSPF S
35. ervices for parameter descriptions System responds 12 Click on OK 13 Click on Done 14 Click on Done You return to the ATM Service Records List window which displays a summary of the NHRP record that you configured You return to the Edit ATM Connector window You return to the Select Connection Type window 15 Click on Done You return to the Configuration Manager window 308647 14 20 Rev 00 Starting VRRP Services Mapping an MPS to the LEC Service Record You must map an MPS to any LEC service likely to send and receive MPOA resolution requests and replies over the ATM network You can map one MPS to one or more LEC services configured on the same ATM slot and connector To map an MPOA server MPS to a LEC service complete the following tasks Site Manager Procedure You do this 1 In the Configuration Manager window click on an ATM link module interface for example ATM1 System responds The Select Connection Type window opens 2 Click on ATM The Edit ATM Connector window opens 3 Click on MPOA Server Attributes The MPOA Service Record window opens 4 Click on MPS The MPS List window opens 5 Click on Mapping The LEC to MPS Mapping List window opens 6 Click on any LEC that you want to map to the MPS 7 Click on Mapping Repeat steps 8 and 9 to map any additional LECs Site Manager maps the LEC to the M
36. ess lt vr_ip_address gt For example to change the IP address enter the following command vrrp 192 41 31 21 2 vr ip address 192 41 31 25 vrrp 192 41 31 21 2 Using Site Manager To change the IP address to be backed up by a virtual router complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose VRRP The IP VRRP Configuration Parameters window opens 4 Click on a virtual router instance ID to highlight it in the list of virtual routers The configuration that pertains to the highlighted virtual router appears 5 Set the Virtual Router IP Address parameter Click on Help or see the parameter description on page A 6 6 Click on Apply 7 Click on Done You return to the Configuration Manager window 308647 14 20 Rev 00 3 3 Configuring VRRP Services Setting the Priority of the Virtual Router You can set the priority of the virtual router in relation to all virtual routers that have the same virtual router ID and are on the same subnet The higher you set the value the higher the priority of the virtual router and the more likely it will become primary if the master fails When you initially configure a virtual router if the primary IP address is the same as the virtual router IP address the
37. guments primary ip address lt primary_ip_address gt vrid lt vrid gt Displays information about the virtual router associated with the IP address of the physical interface Displays information about the virtual router that corresponds to the specified virtual router identifier 308647 14 20 Rev 00 Monitoring VRRP Using the BCC show Commands The output includes the following information Primary IP Address VRID Virtual IP Address VRRP Virtual MAC Address Token Ring Func Address show vrrp summary IP address of the physical interface with which the virtual router is associated Virtual router identifier configured in the range of 1 through 255 IP address that the virtual router backs up Virtual router MAC address that is configured on an IP interface over token ring Token ring functional address for the VRRP virtual MAC address The show vrrp summary command displays the state advertisement interval and priority for a specific VRRP virtual router or all VRRP virtual routers This command allows for the following command filters flags and arguments primary ip address lt primary_ip_address gt vrid lt vrid gt Displays information about the virtual router associated with the IP address of the physical interface Displays information about the virtual router that corresponds to the specified virtual router identifier The output includes the following information Primary IP Address
38. he Software or any information about the operation design performance or implementation of the Software and user manuals that is confidential to Nortel 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 Nortel Networks warrants each item of Software as delivered by Nortel Networks and properly installed and operated on Nortel 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 Nortel Networks will at its discretion provide a suitable fix patch or workaround for the problem that may be included in a future Software release Nortel Networks further warrants to Licensee that the media on which the Software is provided will be free from defects in materials and workmanship under normal use for a period of 90 days from the date Software is first shipped to Licensee Nortel Networks will replace defective media at no charge if it is returned to Nortel Networks during the warranty period along with proof of the date of shipment This warranty does not apply if the media ha
39. ing that product or service To locate an ERC for your product or service go to the www12 nortelnetworks com URL and click ERC at the bottom of the page xiv 308647 14 20 Rev 00 Chapter 1 VRRP Concepts This chapter describes VRRP concepts you need to know before you begin configuring a VRRP router Topic Page About VRRP 1 4 Master Virtual Router 1 2 Backup Virtual Routers 1 2 Critical IP Interfaces 1 2 VRRP Messaging 1 2 Planning Your Network 1 3 About VRRP The Virtual Router Redundancy Protocol VRRP which runs over IP enables you to configure router redundancy This redundancy protects a network from the irrecoverable failure of one or more IP interfaces and eliminates any single point of failure within your network In addition to configuring VRRP over IP you can also configure VRRP on an ATM network that is configured with Multi Protocol over ATM MPOA VRRP manages a virtual router which is a software defined object that corresponds to an IP address on a LAN segment A virtual router typically exists on multiple routers running VRRP known as VRRP routers One of the VRRP routers acts as the master virtual router for an IP address while other VRRP routers act as backup virtual routers 308647 14 20 Rev 00 1 1 Configuring VRRP Services You identify each virtual router using a virtual router identifier VRID and a virtual router IP address All VRRP routers on
40. lid parameter options e Parameter function e Instructions for setting the parameter e 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 see 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 308647 14 20 Rev 00 A 1 Configuring VRRP Services Add Virtual Router Parameters The VRRP parameters in the Add Virtual Router window Figure A 1 let you establish a virtual router on an IP interface Cancel OK Values Help Primary IP Address See ce Virtual Router ID 2 Virtual Router IP Address 2 3 3 4 Figure A 1 Add Virtual Router Window To access the Add Virtual Router window complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Protocols menu opens choose Protocols 2 Choose IP The IP menu opens 3 Choose VRRP The IP VRRP Configuration Parameters window opens 4 Click on Add The Add Virtual Router window opens The parameter descriptions follow A 2 308647 14 20 Rev 00 Parameter Path Default Opti
41. lity INNO EVENT WILL NORTEL 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 NORTEL NETWORKS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES IN NO EVENT 308647 14 20 Rev 00 iii SHALL THE LIABILITY OF NORTEL NETWORKS RELATING TO THE SOFTWARE OR THIS AGREEMENT EXCEED THE PRICE PAID TO NORTEL NETWORKS FOR THE SOFTWARE LICENSE 5 Government licensees This provision applies to all Software and documentation acquired directly or indirectly by or on behalf of the United States Government The Software and documentation are commercial products licensed on the open market at market prices and were developed entirely at private expense and without the use of any U S Government funds The license to the U S Government is granted only with restricted rights and use duplication or disclosure by the U S Government is subject to the restrictions set forth in subparagraph c 1 of the Commercial Computer Software Restricted Rights clause of FAR 52 227 19 and the limitations set out in this license for civilian agencies and subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause of DFARS 252 227 7013 for agencies of the Department of Defense or their successors whichever is applica
42. n IP interface on a physical interface navigate to the prompt for the physical interface and enter ip address lt address gt mask lt mask gt address and mask are a valid IP address and its associated mask expressed in dotted decimal notation For example the following command configures IP interface 2 2 2 2 255 0 0 0 on an Ethernet physical interface on slot 2 connector 2 ethernet 2 2 ip address 2 2 2 2 mask 255 0 0 0 ip 2 2 2 2 255 0 0 0 An IP interface is now configured on the Ethernet interface with default values for all interface parameters When you configure an IP interface the BCC also configures IP globally on the router with default values for all IP global parameters To customize your IP interface by modifying the IP global and interface parameters see Configuring IP ARP RARP RIP and OSPF Services Configuring a Virtual Router To configure a virtual router begin at the top level box prompt and enter ip The IP global prompt appears Note that you can configure a virtual router on an IP interface that does not exist At the IP global prompt enter the following vrrp primary ip address lt primary_ip_address gt vr id lt vr_id gt vr ip address lt vr_ip_address gt primary _ip_address is the IP address of the physical interface with which the virtual router is associated vr_id is the virtual router identifier configured in the range of 1 to 255 vr_ip_address is the IP address that the virtual
43. n the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose VRRP The IP VRRP Configuration Parameters window opens Click on a virtual router instance ID to highlight it in the list of virtual routers The configuration that pertains to the highlighted router appears Set the Advertisement Interval parameter Click on Help or see the parameter description on page A 6 6 Click on Apply 7 Click on Done You return to the Configuration Manager window 308647 14 20 Rev 00 3 7 Configuring VRRP Services Setting the Critical IP Interface Address The critical IP interface resides on the same router as a physical interface The state of the critical IP interface determines the state of the virtual router If the critical interface fails the virtual router fails and the VRRP router with the next highest priority becomes the master virtual router and begins routing traffic to its destination Using the BCC To specify a critical IP interface address access the virtual router for example box ip vrrp 192 41 31 21 2 vr ip address 192 41 31 22 and enter critical ip interface lt critical_ip_address gt For example to set the critical IP interface address enter the following command vrrp 192 41 31 21 2 Critical ip interface 192 41 31 76 vrrp 192 41 31 21 2 Using Site Manager To specify the critical IP
44. ng AQdESS srantemannananirenaniinii na a Ad 3 13 vi 308647 14 20 Rev 00 Appendix A Site Manager Parameters Add Virtual Router PAIGINGIENS cascecsccicis icccebsiax conse niaar oiean aa E Eas A 2 VRRP Conn uration E A 4 Appendix B Monitoring VRRP Using the BCC show Commands Galine Help forshow Gomma nde asrning iin N N aa B 1 show vrrp critical ip addresses ATDA EE E E E E E T B 2 Show VEY DOEN prioni caer aeanoea a Ea A aE GES B 2 REENEN enee Eeer E EAN E EI AES B 3 Glossary Index 308647 14 20 Rev 00 vii Figures Figure 1 1 Using VRRP with One Master and One Backup Virtual Router 1 3 Figure 1 2 Using VRRP and Performing Load Balancing cccceeseeeeeeeeeteeees 1 4 Figure 1 3 Using VRRP with a Critical IP Interface iccccisccccscccnsccecissnersserateuerensernees 1 5 Figure 1 4 Sample Invalid Virtual Router Configuration cccccesceeseeeeeeteeeeeeees 1 6 Figure A 1 Add Virtual Router Window s es T T E we A 2 Figure A 2 IP VRRP Configuration Parameters Window esseeeeseesseeeeereeeneen A 4 308647 14 20 Rev 00 ix Preface This guide describes the Virtual Router Redundancy Protocol VRRP and what you do to start and customize VRRP services on a Nortel Networks router TM You can use the Bay Command Console BCC or Site Manager to configure VRRP services on a router In this guide you will find instructions for using both the BCC and Site Manager B
45. ntaacereatertesanveedsectansibnansvemmets 2 8 Ste Ee ae WEE 2 8 Defining a LAN Emulation Client Service Record seesseesee Deeg 2 9 Creating an MPOA Service Record AAA 2 9 Adding an MPOR Server EE 2 10 Adding IP RIP or OSPF and NHRP to the LEC Service Recon 2 10 sera MP aio a LEO ee 2 11 Adding VRRP to the LEC Service Record er are pies Gate E 2 11 Using Site KENE tege EEGEN 2 12 A an ATM CITOU EE 2 13 Adding a LANE Service Record saints EE T T eet 2 14 Creating an MPOA Service Record sciccciecsatiosts cavestinatetiendsiaeiandasentensaainaees 2 15 Adding an MPOA Server MIPS EE 2 16 Adding IP RIP or OSPF and NHRP to the LEC Service Recon 2 17 Mapping an MPS to the LEC Service Record ec esceseseeeeseeeeeeeeseeeee 2 19 Adding VRRP to the LEC Service Record Aen 2 20 Chapter 3 Customizing VRRP Disabling and Reenabling a Virtual Router ccccceeeeeceeeeeeeeeeeeeeeseeeeeeeeeeeeseneeeeaeeneeees 3 2 Changing the IP Address Backed Up by a Virtual Router cecceceeeeeeeeeeeeeteeeeeneeees 3 3 Setting the Priority of the Virtual Router ccsasccisgeiseeicnasnrniasreiionaeiancen no Setting the Advertisement Interval free Secs ees E GE See ae 3 6 Setting the Critical iP Interac Miete ssiciiriciiren oiii aain aiaa 3 8 Enabling of Disabling IPX BACKUP reniir onining aana aaia a 3 9 Enabling or Disabling IOMP BackUp et2aebSbeu enker e Eeiee ee eiei 3 11 Seting the Token Ri
46. ompany 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 Nortel Networks NA Inc reserves the right to make changes to the products described in this document without notice Nortel Networks NA 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 materials and other materials related to such distribution and use acknowledge that such portions of the software were developed by the University of California Berkeley The name of the University may not be used to endorse or promote products derived from such portions of the software without specific prior written permission SUCH PORTIONS OF THE SOFTWARE ARE PROVIDED AS IS AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABIL
47. ons Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Primary IP Address Configuration Manager gt Protocols gt IP gt VRRP gt Add None Any valid IP address in dotted decimal notation Identifies the IP address of the physical interface The router lists this IP address as the source in VRRP advertisements sent by the virtual router Ensure that the primary IP address and the virtual router IP address are on the same subnet 1 3 6 1 4 1 18 3 5 3 25 1 1 4 Virtual Router ID Configuration Manager gt Protocols gt IP gt VRRP gt Add None 1 to 255 Identifies the virtual router s ID VRID The router uses this number to calculate the MAC address The VRID must be unique on the LAN segment Enter the ID of the virtual router 1 3 6 1 4 1 18 3 5 3 25 1 1 5 Virtual Router IP Address Configuration Manager gt Protocols gt IP gt VRRP gt Add None Any valid IP address in dotted decimal notation Identifies the IP address that the virtual router backs up Ensure that the primary IP address and the virtual router IP address are on the same subnet If the virtual router IP address is the same as the primary IP address then this VRRP router when operating will always be the master virtual router 1 3 6 1 4 1 18 3 5 3 25 1 1 6
48. or information without first obtaining any required export licenses or other governmental approvals Without limiting the foregoing Licensee on behalf of itself and its subsidiaries and affiliates agrees that it will not without first obtaining all export licenses and approvals required by the U S Government i export re export transfer or divert any such Software or technical data or any direct product thereof to any country to which such exports or re exports are restricted or embargoed under United States export control laws and regulations or to any national or resident of such restricted or embargoed countries or ii provide the Software or related technical data or information to any military end user or for any military end use including the design development or production of any chemical nuclear or biological weapons 9 General If any provision of this Agreement is held to be invalid or unenforceable by a court of competent jurisdiction the remainder of the provisions of this Agreement shall remain in full force and effect This Agreement will be governed by the laws of the state of California Should you have any questions concerning this Agreement contact Nortel Networks 4401 Great America Parkway PO 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
49. or 1 atm 5 1 signaling signaling 5 1 back atm 5 1 mpoa service mpoa service 5 1 308647 14 20 Rev 00 2 9 Configuring VRRP Services Adding an MPOA Server MPS To add an MPS navigate to the desired MPOA service prompt and enter mps mps name lt mps name gt For example on a System 5000 router the following command adds an MPS named eastcoast to an MPOA service mpoa service 5 3 1 mps mps name eastcoast mps eastcoast Adding IP RIP or OSPF and NHRP to the LEC Service Record To add IP RIP or OSPF and NHRP to an existing LEC service 1 Navigate to the appropriate lec service prompt and enter nhrp 2 Navigate back to the lec service prompt and enter ip address lt P_address gt mask lt subnet_mask gt 3 At the resulting IP interface prompt add the desired routing protocol RIP or OSPF rip For example on a System 5000 router the following BCC commands navigate to the lec service named newyork and add NHRP IP and RIP to that service stack atm 5 3 1 atm 5 3 1 lec service newyork lec service newyork nhrp nhrp newyork back lec service newyork ip address 1 2 3 4 mask 255 0 0 0 ip 1 2 3 4 255 0 0 0 rip rip 1 2 3 4 When you add NHRP to any ATM LEC service the BCC automatically creates the global NHRP object at root level if you have not already done so 2 10 308647 14 20 Rev 00 Starting VRRP Services Mapping an MPS to a LEC To map an MPS to an LEC service navig
50. outers 2 2 308647 14 20 Rev 00 Starting VRRP Services For example to back up two different IP addresses that are multinetted on one interface configure a virtual router for each IP address Use a different IP address for each virtual router but use the same VRID for both Configuring VRRP Over IP You can use the BCC or Site Manager to start IP on the router and configure VRRP Using the BCC Complete the following tasks to start IP and configure VRRP on the router 1 Configure a physical interface on an available slot connector 2 Configure an IP interface on the physical interface 3 Configure a virtual router Configuring a Physical Interface To configure a physical interface on a slot and connector navigate to the top level box prompt box or stack and enter lt interface_type gt slot lt siot_number gt module lt module_number gt connector lt connector_number gt interface_type is the name of a link module on the router slot_number is the number of the slot on which the link or net module is located module_number is the net module number ASN and System 5000 routers only connector_number is the number of a connector on the link or net module For example the following command configures an Ethernet interface on slot 2 connector 2 box ethernet slot 2 connector 2 ethernet 2 2 308647 14 20 Rev 00 2 3 Configuring VRRP Services Configuring an IP Interface To configure a
51. ration that pertains to the highlighted virtual router appears Set the Priority parameter Click on Help or see the parameter description on page A 6 6 Click on Apply 7 Click on Done You return to the Configuration Manager window 308647 14 20 Rev 00 3 5 Configuring VRRP Services Setting the Advertisement Interval The advertisement interval is the number of seconds between transmissions of VRRP advertisements from the master virtual router notifying all backup routers that it is currently the master virtual router and is forwarding all traffic You must set the same advertisement interval for all VRRP routers having the same VRID on the same LAN The default advertisement interval is 1 second however you can change the interval to a value from 1 through 255 Using the BCC To change a virtual router s advertisement interval access the virtual router for example box ip vrrp 192 41 31 21 2 vr ip address 192 41 31 22 and enter advertisement interval lt integer gt integer is the interval in seconds from 1 to 255 For example to change the advertisement interval to 60 enter the following command vrrp 192 41 31 21 2 advertisement interval 60 vrrp 192 41 31 21 2 3 6 308647 14 20 Rev 00 Using Site Manager Customizing VRRP To set the advertisement interval complete the following tasks Site Manager Procedure You do this System responds 1 I
52. red on the physical interface uses the VRRP MAC address instead of the physical MAC address If the virtual router is in the backup state IPX is disabled Select Enable to enable IPX backup on the virtual router Select Disable to disable IPX backup on the virtual router 1 3 6 1 4 1 18 3 5 53 25 1 1 11 308647 14 20 Rev 00 A 7 Configuring VRRP Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID IGMP Backup Configuration Manager gt Select Protocols gt IP gt VRRP Disable Enable Disable Enables or disables IGMP backup when IGMP is configured on the same physical interface as VRRP When enabled this feature provides IGMP backup when the virtual router is in the master state In that case IGMP configured on the physical interface is enabled If the virtual router is in the backup state IGMP is disabled Select Enable to enable IGMP backup on the virtual router Select Disable to disable IGMP backup on the virtual router 1 3 6 1 4 1 18 3 5 53 25 1 1 12 Token Ring Address Configuration Manager gt Select Protocols gt IP gt VRRP None Use one of the following unused token ring functional addresses 03 00 02 00 00 00 03 00 04 00 00 00 03 00 08 00 00 00 03 00 10 00 00 00 03 00 20 00 00 00 03 00 40 00 00 00 03 00 80 00 00 00 03 00 00 01 00 00 03 00 00 02 00 00 03 00 00
53. router uses 2 4 308647 14 20 Rev 00 Starting VRRP Services The primary IP address and the virtual router IP address must form a unique pair and must also be on the same subnet Note You can also configure a virtual router using the shortened command format vrrp lt primary_ip_address gt lt vr_id gt vr ip address lt vr_ijp_address gt For example to configure a virtual router with a primary IP address of 192 41 31 21 a virtual router ID of 2 and a virtual router IP address of 192 41 31 22 enter the following box ip ip vrrp primary ip address 192 41 31 21 vr id 2 vr ip address 192 41 31 22 vrrp 192 41 31 21 2 Using Site Manager Before you can select a protocol to run on the router you must first configure a circuit that the protocol can use as an interface to an attached network For information and instructions see Configuring WAN Line Services and Configuring Ethernet FDDI and Token Ring Services When you have successfully configured the circuit the Select Protocols window opens To start IP complete the following tasks Site Manager Procedure You do this System responds 1 Inthe Select Protocols window select IP The IP Configuration window opens Then click on OK 2 Set the following parameters e IP Address e Subnet Mask e Transmit Beast Addr e UnNumbered Assoc Addr Click on Help or see the parameter descriptions in Configuring IP ARP RARP RIP and OSPF Services
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55. ss the virtual router and enter state enabled For example to disable a virtual router enter the following command vrrp 192 41 31 21 2 state disabled vrrp 192 41 31 21 2 Using Site Manager To disable or reenable a virtual router complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens Choose IP The IP menu opens 3 Choose VRRP The IP VRRP Configuration Parameters window opens or see the parameter description on page A 5 4 Click on a virtual router instance ID to The configuration that pertains to the highlight it in the list of virtual routers highlighted virtual router appears 5 Set the Enable parameter Click on Help 6 Click on Apply 7 Click on Done You return to the Configuration Manager window 308647 14 20 Rev 00 Customizing VRRP Changing the IP Address Backed Up by a Virtual Router When you first configure a virtual router you must supply an IP address that the virtual router backs up This IP address must be on the same subnet as the primary IP address You can change the IP address to be backed up by a virtual router Using the BCC To change the IP address to be backed up by a virtual router access the virtual router for example box ip vrrp 192 41 31 21 2 vr ip address 192 41 31 22 and enter vr ip addr
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57. t support IP multicasting Only the master virtual router transmits VRRP advertisements 308647 14 20 Rev 00 VRRP Concepts Planning Your Network You can use VRRP to target stub networks with hosts having default gateway addresses to provide redundancy for IP addresses To avoid a single point of failure you should configure the default gateway IP address as the virtual router IP address on multiple IP interfaces on different physical routers Refer to the following sample configurations when determining how to configure VRRP in your network Sample Configurations The configuration in Figure 1 1 shows a simple VRRP scenario in which both router A and router B are running VRRP The end hosts install a default route to the IP address of router A which serves as the master virtual router for virtual router 1 If router A fails then router B becomes the master virtual router for virtual router 1 Router A Router B running VRRP running VRRP ee ee ee ee e el a es Ste eos Virtual router 1 Backup virtual router for 1 1 1 1 Virtual router 1 Master virtual router for 1 1 1 1 7 e EE EEEE E E LL P address IP address 1 1 1 1 1 1 1 2 DG 1 1 1 1 DG 1 1 1 1 DG 1 1 1 1 DG 1 1 1 1 Host Host Host Host d 2 3 4 Key DG Default gateway VROOO1A Figure 1 1 Using VRRP with One Master and One Backup Virtual Router 308647 14 20 Rev 00 1 3 Configuring VRRP Services The configuration in Figure 1 2 shows
58. to a configuration To add ATM to the BN configuration on slot 5 connector 1 box atm slot 5 connector 1 atm 5 1 Enabling Signaling To enable signaling on an ATM interface navigate to the ATM prompt and enter signaling For example the following command enables UNI V3 0 default signaling on slot 5 connector 1 atm 5 1 signaling signaling 5 1 2 8 308647 14 20 Rev 00 Starting VRRP Services Defining a LAN Emulation Client Service Record To define a LAN emulation client LEC service record navigate to the ATM interface prompt and enter lec service lt service_name gt service_name is a unique text string that you assign to the service record For example the following command defines a LEC service record with the name newyork on ATM slot 5 connector 1 atm 5 1 lec service newyork lec service newyork Creating an MPOA Service Record To create an MPOA service record navigate to the appropriate ATM interface prompt and enter mpoa service For example on a System 5000 router the following command sequence e Creates an ATM interface on slot 5 module 3 connector 1 e Creates an MPOA service on the ATM interface stack atm slot 5 module 3 connector 1 atm 5 3 1 signaling signaling 5 3 1 back atm 5 3 1 mpoa service mpoa service 5 3 1 On a BLN BCN router the commands are identical except that you do not specify a module number for the ATM interface box atm slot 5 connect
59. ual router IP address of 192 41 31 22 enter the following box ip ip vrrp primary ip address 192 41 31 21 vr id 2 vr ip address 192 41 31 22 vrrp 192 41 31 21 2 Using Site Manager Complete the following tasks to start ATM and then configure MPOA and VRRP on a router 1 Sch inr TRS Create an ATM circuit Add a LANE service record Create an MPOA service record Add an MPOA Server MPS Add IP RIP or OSPF and NHRP to the LEC service record Map an MPS to a LEC Add VRRP to the LEC service record 308647 14 20 Rev 00 Creating an ATM Circuit Starting VRRP Services To create an ATM circuit complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window for the Passport 5430 only in slot 1 pci slot 1 module 2 click on the ATM T1 E1 link module ATM1 For all other systems that support ATM click on an ATM link module interface ATM1 The Add Circuit window opens Click on OK to accept the default circuit name Click on ATM The Select Connection Type window opens The Initial ATM Signaling Config window opens 4 Click on OK to accept the default settings The Edit ATM Connector window opens 5 Go to the next section to define a service record on the circuit Note Accepting the defaults in the Initial ATM Signaling Config window enables signaling on the interface 30
60. uter A 2 2 2 1 1 1 1 1 Router B Wirualroutert O00 Virtual routeri VRIP 132 128 128 30 VRIP 132 128 128 30 VRID 1 VRID 1 s Priority 100 Priority 255 LI 132 128 128 10 255 255 2555 0 VRIP 255 255 255 0 CRIP 255 255 255 0 Continuous ping 200 200 200 2 DG 132 128 128 128 30 Key DG Default gateway CRIP Critical IP interface address VRIP Virtual router IP address VRID Virtual router ID VROO03A Figure 1 3 Using VRRP with a Critical IP Interface 308647 14 20 Rev 00 1 5 Configuring VRRP Services Figure 1 4 shows an invalid VRRP configuration that is the virtual router with primary IP address 1 1 1 1 is not configured on a VRRP router that has a physical interface with IP address 1 1 1 1 You must always configure a virtual router whose IP address physically exists on the LAN For example you must configure virtual router 1 on router A because the IP address of virtual router 1 is the same as the physical address of router A Router A Router B Router C ean E en ae ee ee a ek ee ae ee e lt 8 Virtual router 1 Virtual Router 1 Ge VRIP 1 1 1 1 VRIP 1 1 1 1 i VRID 1 VRID 1 j Priority 100 Priority 50 7 1 1 1 1 1 1 1 2 1 1 1 3 1 1 1 4 DG 1 1 1 1 Host Key DG Default gateway VRIP Virtual router IP address VRID Virtual router ID VROO04A Figure 1 4 Sample Invalid Virtual Router Configuration 1 6 308647 14 20 Rev 00 Chapter 2 Starting VRRP
61. uter MAC address The token ring address setting identifies the token ring functional address for the virtual router MAC address that is configured on an IP interface over token ring However if you are running VRRP on a token ring LANE network packets with functional addresses are sent to the BUS and treated as multicast or broadcast frames which causes the BUS to overload with user data frames Since the BUS has limited packet throughput you must supply a virtual router MAC address instead of a token ring functional address VRRP virtual MAC addresses have the following format 00 00 5E 00 01 XX where XX is the virtual router ID For instructions on supplying a token ring address see Configuring a Virtual Router on page 2 2 Caution For virtual routers running over token ring you must supply token ring functional addresses for virtual router MAC addresses or VRRP will fail However for token ring LANE networks you must supply virtual router MAC addresses Using the BCC To set the token ring address access the virtual router for example box ip vrrp 192 41 31 21 2 vr ip address 192 41 31 22 and enter token ring address lt address gt 308647 14 20 Rev 00 3 13 Configuring VRRP Services address is one of the following unused token ring functional addresses 03 00 02 00 00 00 03 00 04 00 00 00 03 00 08 00 00 00 03 00 10 00 00 00 03 00 20 00 00 00 03 00 40 00 00 00 03 00 80 00 00 00 03 00 00
62. x backup enabled To disable IPX backup access the virtual router and enter ipx backup disabled For example to enable IPX backup enter the following command vrrp 192 41 31 21 2 ipx backup enabled vrrp 192 41 31 21 2 308647 14 20 Rev 00 3 9 Configuring VRRP Services Using Site Manager To enable IPX backup complete the following tasks Site Manager Procedure You do this System responds 1 In the Configuration Manager window choose Protocols The Protocols menu opens 2 Choose IP The IP menu opens 3 Choose VRRP The IP VRRP Configuration Parameters window opens 4 Click on a virtual router instance ID to The configuration that pertains to the highlight it in the list of virtual routers highlighted router appears 5 Set the IPX Backup parameter Click on Help or see the parameter description on page A 7 6 Click on Apply 7 Click on Done You return to the Configuration Manager window 3 10 308647 14 20 Rev 00 Customizing VRRP Enabling or Disabling IGMP Backup When the Internet Group Management Protocol IGMP is configured on the same physical interface as VRRP you can enable IGMP backup When enabled this feature provides IGMP backup when the virtual router is in the master state In this case IGMP configured on the physical interface is enabled If the virtual router is in the backup state IGMP is disabled By default IGM

Avaya Configuring VRRP Services (308647-14.20 Rev 00) User's Manual

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