Concept Guide

Flush MAC Addresses after a Topology Change....................................................................................................... 558
MSTP Sample Congurations......................................................................................................................................559
Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-
CongurationSFTOS Example Running-Conguration.......................................................................................559
Debugging and Verifying MSTP Congurations........................................................................................................ 562
32 Multicast Features...................................................................................................................................564
Enabling IP Multicast.....................................................................................................................................................564
Implementation Information......................................................................................................................................... 564
Multicast Policies...........................................................................................................................................................565
IPv4 Multicast Policies............................................................................................................................................565
Understanding Multicast Traceroute (mtrace).....................................................................................................572
Printing Multicast Traceroute (mtrace) Paths......................................................................................................573
Supported Error Codes........................................................................................................................................... 574
mtrace Scenarios..................................................................................................................................................... 575
33 Multicast Listener Discovery Protocol...................................................................................................... 581
MLD Version 1................................................................................................................................................................. 581
MLD Querier Router.......................................................................................................................................................581
Joining a Multicast Group.............................................................................................................................................582
Leaving a Multicast Group............................................................................................................................................582
MLD version 2................................................................................................................................................................582
MLD timers.....................................................................................................................................................................584
Reducing Host Response Burstiness.................................................................................................................... 585
Clearing MLD groups.................................................................................................................................................... 585
Debugging MLD.............................................................................................................................................................585
Explicit Tracking.............................................................................................................................................................585
Reducing Leave Latency...............................................................................................................................................585
Displaying MLD groups table........................................................................................................................................586
Displaying MLD Interfaces............................................................................................................................................586
MLD Snooping............................................................................................................................................................... 586
Enable MLD Snooping.............................................................................................................................................586
Disable MLD Snooping............................................................................................................................................ 587
Congure the switch as a querier..........................................................................................................................587
Specify port as connected to multicast router.....................................................................................................587
Enable Snooping Explicit Tracking.........................................................................................................................588
Display the MLD Snooping Table........................................................................................................................... 588
34 Object Tracking....................................................................................................................................... 589
Object Tracking Overview............................................................................................................................................ 589
Track Layer 2 Interfaces......................................................................................................................................... 590
Track Layer 3 Interfaces......................................................................................................................................... 590
Track IPv4 and IPv6 Routes....................................................................................................................................591
Set Tracking Delays................................................................................................................................................. 592
VRRP Object Tracking............................................................................................................................................ 592
Object Tracking Conguration..................................................................................................................................... 592
Contents
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