Administrator Guide

Enable Multiple Spanning Tree Globally..................................................................................................................... 571
Adding and Removing Interfaces................................................................................................................................. 571
Creating Multiple Spanning Tree Instances...............................................................................................................571
Influencing MSTP Root Selection............................................................................................................................... 572
Interoperate with Non-Dell Bridges............................................................................................................................573
Changing the Region Name or Revision.................................................................................................................... 573
Modifying Global Parameters.......................................................................................................................................573
Modifying the Interface Parameters.......................................................................................................................... 574
Setting STP path cost as constant............................................................................................................................ 575
Configuring an EdgePort...............................................................................................................................................576
Flush MAC Addresses after a Topology Change.....................................................................................................576
MSTP Sample Configurations...................................................................................................................................... 577
Debugging and Verifying MSTP Configurations......................................................................................................580
Chapter 34: Multicast Features................................................................................................. 582
Enabling IP Multicast......................................................................................................................................................582
Implementation Information......................................................................................................................................... 582
Multicast Policies............................................................................................................................................................ 583
IPv4 Multicast Policies.............................................................................................................................................583
Understanding Multicast Traceroute (mtrace)....................................................................................................... 589
Printing Multicast Traceroute (mtrace) Paths........................................................................................................590
Supported Error Codes.................................................................................................................................................. 591
mtrace Scenarios............................................................................................................................................................ 592
Chapter 35: Multicast Listener Discovery Protocol....................................................................598
MLD timers........................................................................................................................................................................601
Reducing Host Response Burstiness.................................................................................................................... 601
Clearing MLD groups..................................................................................................................................................... 602
Debugging MLD...............................................................................................................................................................602
Explicit Tracking..............................................................................................................................................................602
Reducing Leave Latency............................................................................................................................................... 602
Displaying MLD groups table........................................................................................................................................602
Displaying MLD Interfaces............................................................................................................................................603
MLD Snooping................................................................................................................................................................. 603
Enable MLD Snooping..............................................................................................................................................603
Disable MLD Snooping............................................................................................................................................. 603
Configure the switch as a querier.........................................................................................................................604
Specify port as connected to multicast router..................................................................................................604
Enable Snooping Explicit Tracking........................................................................................................................ 604
Display the MLD Snooping Table.......................................................................................................................... 604
Chapter 36: Object Tracking..................................................................................................... 605
Object Tracking Overview............................................................................................................................................ 605
Track Layer 2 Interfaces......................................................................................................................................... 606
Track Layer 3 Interfaces......................................................................................................................................... 606
Track IPv4 and IPv6 Routes...................................................................................................................................607
Set Tracking Delays..................................................................................................................................................608
VRRP Object Tracking.............................................................................................................................................608
Object Tracking Configuration.................................................................................................................................... 608
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Contents