Users Guide

Failure and Event Logging..............................................................................................442
Trace Log...........................................................................................................................442
Core Dumps......................................................................................................................443
System Log........................................................................................................................ 443
Hot-Lock Behavior................................................................................................................ 443
Component Redundancy.....................................................................................................443
Automatic and Manual Stack Unit Failover.................................................................444
Synchronization between Management and Standby Units...................................445
Forcing an Stack Unit Failover.......................................................................................445
Specifying an Auto-Failover Limit.................................................................................445
Disabling Auto-Reboot................................................................................................... 446
Manually Synchronizing Management and Standby Units......................................446
24 Internet Group Management Protocol (IGMP)............................................................ 447
IGMP Implementation Information....................................................................................447
IGMP Protocol Overview......................................................................................................448
IGMP Version 2.................................................................................................................448
Join a Multicast Group....................................................................................................449
Leaving a Multicast Group..............................................................................................449
IGMP Version 3.................................................................................................................449
Configure IGMP......................................................................................................................453
Related Configuration Tasks..........................................................................................453
Viewing IGMP Enabled Interfaces...................................................................................... 454
Selecting an IGMP Version...................................................................................................454
Viewing IGMP Groups........................................................................................................... 455
Adjusting Timers.....................................................................................................................455
Adjusting Query and Response Timers........................................................................455
Enabling IGMP Immediate-Leave.......................................................................................456
IGMP Snooping.......................................................................................................................457
IGMP Snooping Implementation Information............................................................457
Configuring IGMP Snooping..........................................................................................457
Removing a Group-Port Association...........................................................................458
Enabling IGMP Immediate-Leave.................................................................................458
Disabling Multicast Flooding..........................................................................................459
Specifying a Port as Connected to a Multicast Router............................................ 459
Configuring the Switch as Querier...............................................................................459
Fast Convergence after MSTP Topology Changes.........................................................460
Egress Interface Selection (EIS) for HTTP and IGMP Applications..............................460
Protocol Separation......................................................................................................... 461
Enabling and Disabling Management Egress Interface Selection......................... 462
Handling of Management Route Configuration........................................................463
Handling of Switch-Initiated Traffic.............................................................................464
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