Concept Guide

System Health Monitoring.......................................................................................................................................317
Failure and Event Logging....................................................................................................................................... 318
Hot-Lock Behavior......................................................................................................................................................... 318
18 Internet Group Management Protocol (IGMP).......................................................................................... 319
IGMP Implementation Information............................................................................................................................... 319
IGMP Protocol Overview...............................................................................................................................................319
IGMP Version 2.........................................................................................................................................................319
IGMP Version 3.........................................................................................................................................................321
Congure IGMP............................................................................................................................................................. 324
Related Conguration Tasks................................................................................................................................... 324
Viewing IGMP Enabled Interfaces............................................................................................................................... 325
Selecting an IGMP Version...........................................................................................................................................325
Viewing IGMP Groups...................................................................................................................................................326
Adjusting Timers............................................................................................................................................................ 326
Adjusting Query and Response Timers................................................................................................................. 326
Preventing a Host from Joining a Group.....................................................................................................................327
Enabling IGMP Immediate-Leave.................................................................................................................................330
IGMP Snooping..............................................................................................................................................................330
IGMP Snooping Implementation Information....................................................................................................... 330
Conguring IGMP Snooping...................................................................................................................................330
Removing a Group-Port Association......................................................................................................................331
Disabling Multicast Flooding....................................................................................................................................331
Specifying a Port as Connected to a Multicast Router...................................................................................... 332
Conguring the Switch as Querier........................................................................................................................ 332
Fast Convergence after MSTP Topology Changes...................................................................................................333
Egress Interface Selection (EIS) for HTTP and IGMP Applications........................................................................333
Protocol Separation.................................................................................................................................................333
Enabling and Disabling Management Egress Interface Selection...................................................................... 334
Handling of Management Route Conguration................................................................................................... 335
Handling of Switch-Initiated Trac....................................................................................................................... 336
Handling of Switch-Destined Trac......................................................................................................................336
Handling of Transit Trac (Trac Separation).....................................................................................................337
Mapping of Management Applications and Trac Type..................................................................................... 337
Behavior of Various Applications for Switch-Initiated Trac ............................................................................ 338
Behavior of Various Applications for Switch-Destined Trac ...........................................................................339
Interworking of EIS With Various Applications.....................................................................................................340
Designating a Multicast Router Interface...................................................................................................................340
19 Interfaces................................................................................................................................................. 342
Basic Interface Conguration.......................................................................................................................................342
Advanced Interface Conguration...............................................................................................................................342
Interface Types...............................................................................................................................................................343
View Basic Interface Information.................................................................................................................................343
Resetting an Interface to its Factory Default State...................................................................................................345
Enabling a Physical Interface........................................................................................................................................345
Contents
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