Concept Guide

Hitless Behavior............................................................................................................................................................. 420
Graceful Restart............................................................................................................................................................. 421
Software Resiliency........................................................................................................................................................421
System Health Monitoring.......................................................................................................................................421
Failure and Event Logging....................................................................................................................................... 421
Trace Log................................................................................................................................................................... 421
Core Dumps...............................................................................................................................................................421
System Log...............................................................................................................................................................422
Control Plane Redundancy........................................................................................................................................... 422
Control-Plane Failover.............................................................................................................................................422
RPM Synchronization..............................................................................................................................................423
Forcing an RPM Failover.........................................................................................................................................423
Specifying an Auto-Failover Limit.......................................................................................................................... 424
Disabling Auto-Reboot............................................................................................................................................ 424
21 Internet Group Management Protocol (IGMP)......................................................................................... 425
IGMP Implementation Information.............................................................................................................................. 425
IGMP Protocol Overview..............................................................................................................................................425
IGMP Version 2........................................................................................................................................................425
IGMP Version 3........................................................................................................................................................ 427
Congure IGMP............................................................................................................................................................. 430
Related Conguration Tasks...................................................................................................................................430
Viewing IGMP Enabled Interfaces................................................................................................................................431
Selecting an IGMP Version............................................................................................................................................431
Viewing IGMP Groups....................................................................................................................................................431
Enabling IGMP Immediate-Leave.................................................................................................................................432
IGMP Snooping..............................................................................................................................................................432
IGMP Snooping Implementation Information....................................................................................................... 432
Conguring IGMP Snooping...................................................................................................................................432
Removing a Group-Port Association..................................................................................................................... 433
Disabling Multicast Flooding...................................................................................................................................434
Specifying a Port as Connected to a Multicast Router...................................................................................... 434
Conguring the Switch as Querier........................................................................................................................ 434
Fast Convergence after MSTP Topology Changes...................................................................................................435
Designating a Multicast Router Interface................................................................................................................... 435
22 Interfaces................................................................................................................................................ 436
Basic Interface Conguration.......................................................................................................................................436
Advanced Interface Conguration...............................................................................................................................436
Port Numbering..............................................................................................................................................................437
Interface Types...............................................................................................................................................................440
View Basic Interface Information.................................................................................................................................440
Resetting an Interface to its Factory Default State...................................................................................................446
Enabling a Physical Interface........................................................................................................................................447
Physical Interfaces.........................................................................................................................................................447
Port Pipes................................................................................................................................................................. 447
14
Contents