Concept Guide
Enabling GVRP on a Layer 2 Interface........................................................................................................................309
Congure GVRP Registration...................................................................................................................................... 309
Congure a GARP Timer............................................................................................................................................... 310
RPM Redundancy.......................................................................................................................................................... 310
17 High Availability (HA)................................................................................................................................ 312
Component Redundancy...............................................................................................................................................312
Automatic and Manual Stack Unit Failover........................................................................................................... 312
Synchronization between Management and Standby Units...............................................................................313
Forcing a Stack Unit Failover.................................................................................................................................. 313
Specifying an Auto-Failover Limit...........................................................................................................................314
Disabling Auto-Reboot............................................................................................................................................. 314
Pre-Conguring a Stack Unit Slot................................................................................................................................ 314
Removing a Provisioned Logical Stack Unit................................................................................................................ 314
Hitless Behavior.............................................................................................................................................................. 314
Graceful Restart............................................................................................................................................................. 315
Software Resiliency........................................................................................................................................................315
Software Component Health Monitoring..............................................................................................................315
System Health Monitoring.......................................................................................................................................315
Failure and Event Logging....................................................................................................................................... 316
Hot-Lock Behavior......................................................................................................................................................... 316
18 Internet Group Management Protocol (IGMP).......................................................................................... 317
IGMP Implementation Information................................................................................................................................317
IGMP Protocol Overview...............................................................................................................................................317
IGMP Version 2......................................................................................................................................................... 317
IGMP Version 3.........................................................................................................................................................319
Congure IGMP............................................................................................................................................................. 322
Related Conguration Tasks................................................................................................................................... 322
Viewing IGMP Enabled Interfaces............................................................................................................................... 323
Selecting an IGMP Version........................................................................................................................................... 323
Viewing IGMP Groups...................................................................................................................................................324
Adjusting Timers.............................................................................................................................................................324
Adjusting Query and Response Timers................................................................................................................. 324
Preventing a Host from Joining a Group.................................................................................................................... 325
Enabling IGMP Immediate-Leave.................................................................................................................................328
IGMP Snooping..............................................................................................................................................................328
IGMP Snooping Implementation Information....................................................................................................... 328
Conguring IGMP Snooping...................................................................................................................................328
Removing a Group-Port Association.....................................................................................................................329
Disabling Multicast Flooding...................................................................................................................................329
Specifying a Port as Connected to a Multicast Router...................................................................................... 330
Conguring the Switch as Querier........................................................................................................................ 330
Fast Convergence after MSTP Topology Changes....................................................................................................331
Egress Interface Selection (EIS) for HTTP and IGMP Applications.........................................................................331
Protocol Separation..................................................................................................................................................331
Contents
11