Users Guide

Viewing the FRRP Configuration...........................................................................................................................394
Viewing the FRRP Information.............................................................................................................................. 394
Troubleshooting FRRP..................................................................................................................................................394
Configuration Checks..............................................................................................................................................394
Sample Configuration and Topology...........................................................................................................................395
FRRP Support on VLT.................................................................................................................................................. 396
Example Scenario.....................................................................................................................................................397
Important Points to Remember.............................................................................................................................398
19 GARP VLAN Registration Protocol (GVRP)............................................................................................. 399
Important Points to Remember...................................................................................................................................399
Configure GVRP............................................................................................................................................................400
Related Configuration Tasks..................................................................................................................................400
Enabling GVRP Globally.................................................................................................................................................401
Enabling GVRP on a Layer 2 Interface........................................................................................................................ 401
Configure GVRP Registration.......................................................................................................................................401
Configure a GARP Timer.............................................................................................................................................. 402
20 High Availability (HA).............................................................................................................................. 403
High Availability on Chassis.......................................................................................................................................... 403
High Availability in a PE Stack......................................................................................................................................403
Online Insertion and Removal.......................................................................................................................................404
RPM Online Insertion.............................................................................................................................................. 404
Line Card Online Insertion...................................................................................................................................... 404
Pre-configuring a Slot for a Line-Card Type........................................................................................................404
Replacing a Line Card............................................................................................................................................. 405
Hitless Behavior.............................................................................................................................................................405
Graceful Restart............................................................................................................................................................ 406
Software Resiliency.......................................................................................................................................................406
System Health Monitoring......................................................................................................................................406
Failure and Event Logging......................................................................................................................................406
Trace Log..................................................................................................................................................................406
Core Dumps..............................................................................................................................................................407
System Log...............................................................................................................................................................407
Control Plane Redundancy...........................................................................................................................................407
Control-Plane Failover.............................................................................................................................................407
RPM Synchronization............................................................................................................................................. 408
Forcing an RPM Failover........................................................................................................................................ 408
Specifying an Auto-Failover Limit..........................................................................................................................409
Disabling Auto-Reboot............................................................................................................................................409
21 Internet Group Management Protocol (IGMP)......................................................................................... 410
IGMP Implementation Information...............................................................................................................................410
IGMP Protocol Overview.............................................................................................................................................. 410
IGMP Version 2.........................................................................................................................................................410
IGMP Version 3.........................................................................................................................................................412
Contents
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