Concept Guide

Reducing Source-Active Message Flooding.........................................................................................................607
Specifying the RP Address Used in SA Messages.............................................................................................. 607
MSDP Sample Congurations..................................................................................................................................... 609
35 Multicast Listener Discovery Protocol...................................................................................................... 612
MLD Version 1................................................................................................................................................................. 612
MLD Querier Router.......................................................................................................................................................612
Joining a Multicast Group..............................................................................................................................................613
Leaving a Multicast Group.............................................................................................................................................613
MLD version 2.................................................................................................................................................................613
MLD timers..................................................................................................................................................................... 615
Reducing Host Response Burstiness.....................................................................................................................616
Conguring MLD Version.............................................................................................................................................. 616
Clearing MLD groups..................................................................................................................................................... 616
Debugging MLD..............................................................................................................................................................616
Explicit Tracking..............................................................................................................................................................616
Reducing Leave Latency................................................................................................................................................617
Displaying MLD groups table.........................................................................................................................................617
Displaying MLD Interfaces.............................................................................................................................................617
33 Multiple Spanning Tree Protocol (MSTP)................................................................................................. 618
Protocol Overview..........................................................................................................................................................618
Spanning Tree Variations............................................................................................................................................... 619
Implementation Information.................................................................................................................................... 619
Congure Multiple Spanning Tree Protocol.................................................................................................................619
Related Conguration Tasks...................................................................................................................................620
Enable Multiple Spanning Tree Globally...................................................................................................................... 620
Adding and Removing Interfaces.................................................................................................................................620
Creating Multiple Spanning Tree Instances.................................................................................................................621
Inuencing MSTP Root Selection................................................................................................................................622
Interoperate with Non-Dell Bridges............................................................................................................................. 622
Changing the Region Name or Revision..................................................................................................................... 623
Modifying Global Parameters....................................................................................................................................... 623
Modifying the Interface Parameters............................................................................................................................624
Setting STP path cost as constant............................................................................................................................. 625
Conguring an EdgePort.............................................................................................................................................. 626
Flush MAC Addresses after a Topology Change....................................................................................................... 626
MSTP Sample Congurations...................................................................................................................................... 627
Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-
CongurationSFTOS Example Running-Conguration....................................................................................... 627
Debugging and Verifying MSTP Congurations........................................................................................................ 630
34 Multicast Features................................................................................................................................... 632
Enabling IP Multicast.....................................................................................................................................................632
Implementation Information..........................................................................................................................................632
Multicast Policies...........................................................................................................................................................633
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