Users Guide

Automatic and Manual Stack Unit Failover...............................................................................................................358
Synchronization between Management and Standby Units..................................................................................... 358
Forcing an Stack Unit Failover..................................................................................................................................359
Specifying an Auto-Failover Limit.............................................................................................................................359
Disabling Auto-Reboot............................................................................................................................................. 359
Manually Synchronizing Management and Standby Units........................................................................................ 359
24 Internet Group Management Protocol (IGMP).......................................................... 360
IGMP Implementation Information................................................................................................................................. 360
IGMP Protocol Overview............................................................................................................................................... 360
IGMP Version 2........................................................................................................................................................360
Join a Multicast Group..............................................................................................................................................361
Leaving a Multicast Group........................................................................................................................................ 361
IGMP Version 3.........................................................................................................................................................361
Congure IGMP............................................................................................................................................................. 364
Related Conguration Tasks..................................................................................................................................... 364
Viewing IGMP Enabled Interfaces.................................................................................................................................. 365
Selecting an IGMP Version.............................................................................................................................................365
Viewing IGMP Groups....................................................................................................................................................365
Adjusting Timers............................................................................................................................................................ 366
Adjusting Query and Response Timers.....................................................................................................................366
Enabling IGMP Immediate-Leave....................................................................................................................................367
IGMP Snooping.............................................................................................................................................................. 367
IGMP Snooping Implementation Information............................................................................................................ 367
Conguring IGMP Snooping.....................................................................................................................................367
Removing a Group-Port Association........................................................................................................................ 368
Enabling IGMP Immediate-Leave............................................................................................................................. 368
Disabling Multicast Flooding.....................................................................................................................................369
Specifying a Port as Connected to a Multicast Router.............................................................................................369
Conguring the Switch as Querier........................................................................................................................... 369
Fast Convergence after MSTP Topology Changes......................................................................................................... 370
Egress Interface Selection (EIS) for HTTP and IGMP Applications.................................................................................370
Protocol Separation..................................................................................................................................................370
Enabling and Disabling Management Egress Interface Selection............................................................................... 371
Handling of Management Route Conguration.........................................................................................................372
Handling of Switch-Initiated Trac...........................................................................................................................372
Handling of Switch-Destined Trac......................................................................................................................... 373
Handling of Transit Trac (Trac Separation)..........................................................................................................374
Mapping of Management Applications and Trac Type............................................................................................374
Behavior of Various Applications for Switch-Initiated Trac ....................................................................................375
Behavior of Various Applications for Switch-Destined Trac ...................................................................................376
Interworking of EIS With Various Applications.......................................................................................................... 376
Designating a Multicast Router Interface........................................................................................................................377
25 Interfaces.................................................................................................................. 378
Basic Interface Conguration......................................................................................................................................... 378
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