Concept Guide

20 Internet Group Management Protocol (IGMP).........................................................................................382
IGMP Implementation Information...............................................................................................................................382
IGMP Protocol Overview..............................................................................................................................................382
IGMP Version 2........................................................................................................................................................ 382
IGMP Version 3........................................................................................................................................................ 384
Congure IGMP............................................................................................................................................................. 387
Related Conguration Tasks................................................................................................................................... 387
Viewing IGMP Enabled Interfaces............................................................................................................................... 388
Selecting an IGMP Version...........................................................................................................................................388
Viewing IGMP Groups...................................................................................................................................................389
Adjusting Timers............................................................................................................................................................ 389
Adjusting Query and Response Timers................................................................................................................. 389
Preventing a Host from Joining a Group.................................................................................................................... 390
Enabling IGMP Immediate-Leave.................................................................................................................................393
IGMP Snooping..............................................................................................................................................................393
IGMP Snooping Implementation Information....................................................................................................... 393
Conguring IGMP Snooping...................................................................................................................................393
Removing a Group-Port Association.....................................................................................................................394
Disabling Multicast Flooding...................................................................................................................................394
Specifying a Port as Connected to a Multicast Router...................................................................................... 395
Conguring the Switch as Querier........................................................................................................................ 395
Fast Convergence after MSTP Topology Changes...................................................................................................396
Egress Interface Selection (EIS) for HTTP and IGMP Applications........................................................................396
Protocol Separation.................................................................................................................................................396
Enabling and Disabling Management Egress Interface Selection...................................................................... 397
Handling of Management Route Conguration................................................................................................... 398
Handling of Switch-Initiated Trac.......................................................................................................................399
Handling of Switch-Destined Trac......................................................................................................................399
Handling of Transit Trac (Trac Separation).................................................................................................... 400
Mapping of Management Applications and Trac Type.....................................................................................400
Behavior of Various Applications for Switch-Initiated Trac .............................................................................401
Behavior of Various Applications for Switch-Destined Trac ...........................................................................402
Interworking of EIS With Various Applications.....................................................................................................403
Designating a Multicast Router Interface...................................................................................................................403
21 Interfaces.................................................................................................................................................405
Basic Interface Conguration.......................................................................................................................................405
Advanced Interface Conguration...............................................................................................................................405
Interface Types...............................................................................................................................................................406
View Basic Interface Information.................................................................................................................................406
Resetting an Interface to its Factory Default State...................................................................................................408
Enabling a Physical Interface........................................................................................................................................409
Physical Interfaces.........................................................................................................................................................409
Conguration Task List for Physical Interfaces....................................................................................................409
Overview of Layer Modes....................................................................................................................................... 410
Contents
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