Connectivity Guide

Table Of Contents
Configuring MLD Version...............................................................................................................................................571
Clearing MLD groups...................................................................................................................................................... 571
Debugging MLD................................................................................................................................................................571
Explicit Tracking...............................................................................................................................................................571
Reducing Leave Latency................................................................................................................................................571
Displaying MLD groups table........................................................................................................................................572
Displaying MLD Interfaces............................................................................................................................................ 572
Chapter 34: Multiple Spanning Tree Protocol (MSTP)............................................................... 573
Spanning Tree Variations.............................................................................................................................................. 574
Implementation Information....................................................................................................................................574
Configure Multiple Spanning Tree Protocol............................................................................................................. 574
Related Configuration Tasks.................................................................................................................................. 574
Enable Multiple Spanning Tree Globally.....................................................................................................................575
Adding and Removing Interfaces................................................................................................................................ 575
Creating Multiple Spanning Tree Instances..............................................................................................................575
Influencing MSTP Root Selection............................................................................................................................... 576
Interoperate with Non-Dell Bridges............................................................................................................................ 577
Changing the Region Name or Revision.................................................................................................................... 577
Modifying Global Parameters....................................................................................................................................... 577
Modifying the Interface Parameters.......................................................................................................................... 578
Setting STP path cost as constant............................................................................................................................ 579
Configuring an EdgePort.............................................................................................................................................. 580
Flush MAC Addresses after a Topology Change.................................................................................................... 580
MSTP Sample Configurations......................................................................................................................................580
Debugging and Verifying MSTP Configurations......................................................................................................584
Chapter 35: Multicast Features................................................................................................. 586
Enabling IP Multicast..................................................................................................................................................... 586
Implementation Information......................................................................................................................................... 586
Multicast Policies............................................................................................................................................................ 587
IPv4 Multicast Policies.............................................................................................................................................587
Understanding Multicast Traceroute (mtrace)....................................................................................................... 593
Printing Multicast Traceroute (mtrace) Paths........................................................................................................ 593
Supported Error Codes................................................................................................................................................. 595
mtrace Scenarios............................................................................................................................................................ 596
Chapter 36: Multicast Listener Discovery Protocol....................................................................602
MLD timers.......................................................................................................................................................................605
Reducing Host Response Burstiness................................................................................................................... 605
Clearing MLD groups..................................................................................................................................................... 606
Debugging MLD...............................................................................................................................................................606
Explicit Tracking..............................................................................................................................................................606
Reducing Leave Latency...............................................................................................................................................606
Displaying MLD groups table........................................................................................................................................606
Displaying MLD Interfaces............................................................................................................................................ 607
MLD Snooping................................................................................................................................................................. 607
Enable MLD Snooping..............................................................................................................................................607
Disable MLD Snooping............................................................................................................................................. 607
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