Concept Guide

Debugging MSDP.......................................................................................................................................................... 592
MSDP with Anycast RP................................................................................................................................................593
Conguring Anycast RP................................................................................................................................................594
Reducing Source-Active Message Flooding........................................................................................................ 595
Specifying the RP Address Used in SA Messages..............................................................................................595
MSDP Sample Congurations......................................................................................................................................597
31 Multiple Spanning Tree Protocol (MSTP).................................................................................................600
Protocol Overview.........................................................................................................................................................600
Spanning Tree Variations............................................................................................................................................... 601
Implementation Information.................................................................................................................................... 601
Congure Multiple Spanning Tree Protocol.................................................................................................................601
Related Conguration Tasks...................................................................................................................................602
Enable Multiple Spanning Tree Globally...................................................................................................................... 602
Adding and Removing Interfaces.................................................................................................................................602
Creating Multiple Spanning Tree Instances................................................................................................................ 603
Inuencing MSTP Root Selection................................................................................................................................604
Interoperate with Non-Dell Bridges.............................................................................................................................604
Changing the Region Name or Revision.....................................................................................................................605
Modifying Global Parameters.......................................................................................................................................605
Modifying the Interface Parameters........................................................................................................................... 606
Setting STP path cost as constant............................................................................................................................. 607
Conguring an EdgePort.............................................................................................................................................. 608
Flush MAC Addresses after a Topology Change....................................................................................................... 608
MSTP Sample Congurations......................................................................................................................................609
Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-
CongurationSFTOS Example Running-Conguration.......................................................................................609
Debugging and Verifying MSTP Congurations......................................................................................................... 612
32 Multicast Features....................................................................................................................................614
Enabling IP Multicast......................................................................................................................................................614
Implementation Information.......................................................................................................................................... 614
Multicast Policies............................................................................................................................................................615
IPv4 Multicast Policies.............................................................................................................................................615
Understanding Multicast Traceroute (mtrace)...........................................................................................................622
Important Points to Remember............................................................................................................................. 623
Printing Multicast Traceroute (mtrace) Paths........................................................................................................... 623
Supported Error Codes................................................................................................................................................. 624
mtrace Scenarios...........................................................................................................................................................625
33 Object Tracking........................................................................................................................................ 631
Object Tracking Overview............................................................................................................................................. 631
Track Layer 2 Interfaces..........................................................................................................................................632
Track Layer 3 Interfaces..........................................................................................................................................632
Track IPv4 and IPv6 Routes................................................................................................................................... 633
Set Tracking Delays................................................................................................................................................. 634
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