Connectivity Guide

Table Of Contents
Influencing MSTP Root Selection............................................................................................................................... 562
Interoperate with Non-Dell Bridges............................................................................................................................563
Changing the Region Name or Revision....................................................................................................................563
Modifying Global Parameters.......................................................................................................................................563
Modifying the Interface Parameters.......................................................................................................................... 564
Setting STP path cost as constant............................................................................................................................ 565
Configuring an EdgePort.............................................................................................................................................. 566
Flush MAC Addresses after a Topology Change.................................................................................................... 566
MSTP Sample Configurations......................................................................................................................................566
Debugging and Verifying MSTP Configurations...................................................................................................... 570
Chapter 34: Multicast Features................................................................................................. 572
Enabling IP Multicast......................................................................................................................................................572
Implementation Information..........................................................................................................................................572
Multicast Policies............................................................................................................................................................ 573
IPv4 Multicast Policies.............................................................................................................................................573
Understanding Multicast Traceroute (mtrace)....................................................................................................... 579
Printing Multicast Traceroute (mtrace) Paths........................................................................................................ 579
Supported Error Codes.................................................................................................................................................. 581
mtrace Scenarios............................................................................................................................................................ 582
Chapter 35: Multicast Listener Discovery Protocol....................................................................588
MLD timers........................................................................................................................................................................591
Reducing Host Response Burstiness.................................................................................................................... 591
Clearing MLD groups..................................................................................................................................................... 592
Debugging MLD...............................................................................................................................................................592
Explicit Tracking..............................................................................................................................................................592
Reducing Leave Latency............................................................................................................................................... 592
Displaying MLD groups table........................................................................................................................................592
Displaying MLD Interfaces............................................................................................................................................593
MLD Snooping................................................................................................................................................................. 593
Enable MLD Snooping..............................................................................................................................................593
Disable MLD Snooping............................................................................................................................................. 593
Configure the switch as a querier.........................................................................................................................594
Specify port as connected to multicast router..................................................................................................594
Enable Snooping Explicit Tracking........................................................................................................................ 594
Display the MLD Snooping Table.......................................................................................................................... 594
Chapter 36: Object Tracking..................................................................................................... 595
Object Tracking Overview............................................................................................................................................595
Track Layer 2 Interfaces......................................................................................................................................... 596
Track Layer 3 Interfaces......................................................................................................................................... 596
Track IPv4 and IPv6 Routes...................................................................................................................................596
Set Tracking Delays.................................................................................................................................................. 597
VRRP Object Tracking.............................................................................................................................................598
Object Tracking Configuration.................................................................................................................................... 598
Tracking a Layer 2 Interface.................................................................................................................................. 598
Tracking a Layer 3 Interface.................................................................................................................................. 599
Track an IPv4/IPv6 Route......................................................................................................................................600
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Contents