Administrator Guide
Setting the FRRP Timers.........................................................................................................................................351
Clearing the FRRP Counters...................................................................................................................................351
Viewing the FRRP Conguration............................................................................................................................351
Viewing the FRRP Information............................................................................................................................... 351
Troubleshooting FRRP.................................................................................................................................................. 352
Conguration Checks..............................................................................................................................................352
Sample Conguration and Topology............................................................................................................................352
FRRP Support on VLT...................................................................................................................................................354
Example Scenario.................................................................................................................................................... 355
Important Points to Remember............................................................................................................................. 356
21 GARP VLAN Registration Protocol (GVRP).............................................................................................. 357
Important Points to Remember....................................................................................................................................357
Congure GVRP.............................................................................................................................................................357
Related Conguration Tasks...................................................................................................................................358
Enabling GVRP Globally................................................................................................................................................ 358
Enabling GVRP on a Layer 2 Interface........................................................................................................................359
Congure GVRP Registration...................................................................................................................................... 359
Congure a GARP Timer.............................................................................................................................................. 360
22 High Availability (HA)............................................................................................................................... 361
High Availability on Stacks.............................................................................................................................................361
Hitless Behavior..............................................................................................................................................................361
Graceful Restart.............................................................................................................................................................362
Software Resiliency....................................................................................................................................................... 362
System Health Monitoring......................................................................................................................................362
Failure and Event Logging.......................................................................................................................................362
Trace Log.................................................................................................................................................................. 362
Core Dumps..............................................................................................................................................................362
System Log...............................................................................................................................................................363
Hot-Lock Behavior.........................................................................................................................................................363
Component Redundancy.............................................................................................................................................. 363
Automatic and Manual Stack Unit Failover.......................................................................................................... 363
Synchronization between Management and Standby Units..............................................................................364
Forcing a Stack Unit Failover................................................................................................................................. 364
Specifying an Auto-Failover Limit..........................................................................................................................364
Disabling Auto-Reboot............................................................................................................................................ 364
Manually Synchronizing Management and Standby Units................................................................................. 365
23 Internet Group Management Protocol (IGMP).........................................................................................366
IGMP Implementation Information.............................................................................................................................. 366
IGMP Protocol Overview..............................................................................................................................................366
IGMP Version 2........................................................................................................................................................366
Join a Multicast Group............................................................................................................................................ 367
Leaving a Multicast Group...................................................................................................................................... 367
IGMP Version 3........................................................................................................................................................368
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