Users Guide

Enabling the Rejected Source-Active Cache....................................................................................................... 596
Accept Source-Active Messages that Fail the RFP Check..................................................................................... 596
Specifying Source-Active Messages.......................................................................................................................... 600
Limiting the Source-Active Messages from a Peer....................................................................................................601
Preventing MSDP from Caching a Local Source........................................................................................................601
Preventing MSDP from Caching a Remote Source.................................................................................................. 602
Preventing MSDP from Advertising a Local Source..................................................................................................602
Logging Changes in Peership States...........................................................................................................................603
Terminating a Peership..................................................................................................................................................603
Clearing Peer Statistics.................................................................................................................................................604
Debugging MSDP..........................................................................................................................................................604
MSDP with Anycast RP................................................................................................................................................605
Conguring Anycast RP............................................................................................................................................... 606
Reducing Source-Active Message Flooding.........................................................................................................607
Specifying the RP Address Used in SA Messages.............................................................................................. 607
MSDP Sample Congurations..................................................................................................................................... 609
32 Multiple Spanning Tree Protocol (MSTP)................................................................................................. 614
Protocol Overview..........................................................................................................................................................614
Spanning Tree Variations............................................................................................................................................... 615
Implementation Information.................................................................................................................................... 615
Congure Multiple Spanning Tree Protocol.................................................................................................................615
Related Conguration Tasks....................................................................................................................................615
Enable Multiple Spanning Tree Globally.......................................................................................................................616
Adding and Removing Interfaces..................................................................................................................................616
Creating Multiple Spanning Tree Instances.................................................................................................................616
Inuencing MSTP Root Selection.................................................................................................................................617
Interoperate with Non-Dell Bridges..............................................................................................................................618
Changing the Region Name or Revision......................................................................................................................618
Modifying Global Parameters........................................................................................................................................619
Modifying the Interface Parameters........................................................................................................................... 620
Conguring an EdgePort............................................................................................................................................... 621
Flush MAC Addresses after a Topology Change....................................................................................................... 622
MSTP Sample Congurations......................................................................................................................................622
Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-
CongurationExample Running-Conguration.....................................................................................................622
Debugging and Verifying MSTP Congurations........................................................................................................ 625
33 Multicast Features................................................................................................................................... 627
Enabling IP Multicast.....................................................................................................................................................627
Implementation Information..........................................................................................................................................627
First Packet Forwarding for Lossless Multicast.........................................................................................................628
Multicast Policies...........................................................................................................................................................628
IPv4 Multicast Policies............................................................................................................................................ 628
Understanding Multicast Traceroute (mtrace).......................................................................................................... 635
Important Points to Remember............................................................................................................................. 636
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