Concept Guide

Table Of Contents
Limiting the Source-Active Cache........................................................................................................................ 570
Clearing the Source-Active Cache....................................................................................................................... 570
Enabling the Rejected Source-Active Cache...................................................................................................... 571
Accept Source-Active Messages that Fail the RFP Check...................................................................................571
Specifying Source-Active Messages..........................................................................................................................575
Limiting the Source-Active Messages from a Peer................................................................................................ 576
Preventing MSDP from Caching a Local Source.................................................................................................... 576
Preventing MSDP from Caching a Remote Source................................................................................................577
Preventing MSDP from Advertising a Local Source...............................................................................................577
Logging Changes in Peership States..........................................................................................................................578
Terminating a Peership..................................................................................................................................................578
Clearing Peer Statistics................................................................................................................................................. 578
Debugging MSDP............................................................................................................................................................579
MSDP with Anycast RP.................................................................................................................................................579
Configuring Anycast RP................................................................................................................................................ 580
Reducing Source-Active Message Flooding........................................................................................................581
Specifying the RP Address Used in SA Messages.............................................................................................581
MSDP Sample Configurations......................................................................................................................................583
Chapter 32: Multiple Spanning Tree Protocol (MSTP)............................................................... 588
Spanning Tree Variations..............................................................................................................................................589
Implementation Information................................................................................................................................... 589
Configure Multiple Spanning Tree Protocol............................................................................................................. 589
Related Configuration Tasks.................................................................................................................................. 589
Enable Multiple Spanning Tree Globally.................................................................................................................... 590
Adding and Removing Interfaces................................................................................................................................590
Creating Multiple Spanning Tree Instances..............................................................................................................590
Influencing MSTP Root Selection................................................................................................................................591
Interoperate with Non-Dell Bridges............................................................................................................................592
Changing the Region Name or Revision....................................................................................................................592
Modifying Global Parameters.......................................................................................................................................592
Modifying the Interface Parameters.......................................................................................................................... 593
Configuring an EdgePort...............................................................................................................................................594
Flush MAC Addresses after a Topology Change.................................................................................................... 595
MSTP Sample Configurations......................................................................................................................................595
Debugging and Verifying MSTP Configurations......................................................................................................598
Chapter 33: Multicast Features................................................................................................. 600
Enabling IP Multicast..................................................................................................................................................... 600
Implementation Information......................................................................................................................................... 600
First Packet Forwarding for Lossless Multicast.......................................................................................................601
Multicast Policies.............................................................................................................................................................601
IPv4 Multicast Policies............................................................................................................................................. 601
Understanding Multicast Traceroute (mtrace)....................................................................................................... 607
Printing Multicast Traceroute (mtrace) Paths........................................................................................................ 608
Supported Error Codes................................................................................................................................................. 609
mtrace Scenarios.............................................................................................................................................................610
Chapter 34: Multicast Listener Discovery Protocol.................................................................... 616
18
Contents