Concept Guide

Clearing Peer Statistics.................................................................................................................................................598
Debugging MSDP..........................................................................................................................................................598
MSDP with Anycast RP................................................................................................................................................599
Conguring Anycast RP............................................................................................................................................... 600
Reducing Source-Active Message Flooding......................................................................................................... 601
Specifying the RP Address Used in SA Messages...............................................................................................601
MSDP Sample Congurations......................................................................................................................................603
31 Multiple Spanning Tree Protocol (MSTP)................................................................................................. 606
Protocol Overview.........................................................................................................................................................606
Spanning Tree Variations...............................................................................................................................................607
Implementation Information....................................................................................................................................607
Congure Multiple Spanning Tree Protocol................................................................................................................ 607
Related Conguration Tasks...................................................................................................................................608
Enable Multiple Spanning Tree Globally...................................................................................................................... 608
Adding and Removing Interfaces.................................................................................................................................608
Creating Multiple Spanning Tree Instances................................................................................................................ 609
Inuencing MSTP Root Selection................................................................................................................................ 610
Interoperate with Non-Dell Bridges..............................................................................................................................610
Changing the Region Name or Revision.......................................................................................................................611
Modifying Global Parameters.........................................................................................................................................611
Modifying the Interface Parameters............................................................................................................................ 612
Setting STP path cost as constant..............................................................................................................................613
Conguring an EdgePort............................................................................................................................................... 614
Flush MAC Addresses after a Topology Change........................................................................................................ 614
MSTP Sample Congurations.......................................................................................................................................615
Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-
CongurationSFTOS Example Running-Conguration........................................................................................615
Debugging and Verifying MSTP Congurations......................................................................................................... 618
32 Multicast Features................................................................................................................................... 620
Enabling IP Multicast.....................................................................................................................................................620
Implementation Information..........................................................................................................................................620
Multicast Policies............................................................................................................................................................621
IPv4 Multicast Policies.............................................................................................................................................621
Understanding Multicast Traceroute (mtrace)...........................................................................................................628
Important Points to Remember............................................................................................................................. 629
Printing Multicast Traceroute (mtrace) Paths........................................................................................................... 629
Supported Error Codes.................................................................................................................................................630
mtrace Scenarios............................................................................................................................................................631
33 Object Tracking........................................................................................................................................637
Object Tracking Overview.............................................................................................................................................637
Track Layer 2 Interfaces..........................................................................................................................................638
Track Layer 3 Interfaces..........................................................................................................................................638
Track IPv4 and IPv6 Routes................................................................................................................................... 639
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Contents