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Table Of Contents
Configuring MLD Version..............................................................................................................................................540
Clearing MLD groups..................................................................................................................................................... 540
Debugging MLD...............................................................................................................................................................540
Explicit Tracking..............................................................................................................................................................540
Reducing Leave Latency...............................................................................................................................................540
Displaying MLD groups table........................................................................................................................................ 541
Displaying MLD Interfaces.............................................................................................................................................541
Chapter 30: Multiple Spanning Tree Protocol (MSTP)............................................................... 542
Spanning Tree Variations.............................................................................................................................................. 543
Implementation Information....................................................................................................................................543
Configure Multiple Spanning Tree Protocol............................................................................................................. 543
Related Configuration Tasks.................................................................................................................................. 543
Enable Multiple Spanning Tree Globally.....................................................................................................................544
Adding and Removing Interfaces................................................................................................................................ 544
Creating Multiple Spanning Tree Instances..............................................................................................................544
Influencing MSTP Root Selection............................................................................................................................... 546
Interoperate with Non-Dell Bridges............................................................................................................................546
Changing the Region Name or Revision....................................................................................................................546
Modifying Global Parameters....................................................................................................................................... 547
Modifying the Interface Parameters.......................................................................................................................... 548
Setting STP path cost as constant............................................................................................................................ 549
Configuring an EdgePort...............................................................................................................................................549
Flush MAC Addresses after a Topology Change.................................................................................................... 550
MSTP Sample Configurations......................................................................................................................................550
Debugging and Verifying MSTP Configurations......................................................................................................554
Chapter 31: Multicast Features..................................................................................................556
Enabling IP Multicast..................................................................................................................................................... 556
Implementation Information......................................................................................................................................... 556
Multicast Policies............................................................................................................................................................ 557
IPv4 Multicast Policies.............................................................................................................................................557
Understanding Multicast Traceroute (mtrace)....................................................................................................... 564
Printing Multicast Traceroute (mtrace) Paths........................................................................................................ 564
Supported Error Codes................................................................................................................................................. 566
mtrace Scenarios............................................................................................................................................................ 567
Chapter 32: Multicast Listener Discovery Protocol.................................................................... 573
MLD timers....................................................................................................................................................................... 576
Reducing Host Response Burstiness....................................................................................................................576
Clearing MLD groups......................................................................................................................................................577
Debugging MLD............................................................................................................................................................... 577
Explicit Tracking.............................................................................................................................................................. 577
Reducing Leave Latency............................................................................................................................................... 577
Displaying MLD groups table........................................................................................................................................ 577
Displaying MLD Interfaces............................................................................................................................................ 578
MLD Snooping................................................................................................................................................................. 578
Enable MLD Snooping.............................................................................................................................................. 578
Disable MLD Snooping............................................................................................................................................. 578
Contents
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