Administrator Guide

Understanding Multicast Traceroute (mtrace)........................................................................................................501
Printing Multicast Traceroute (mtrace) Paths.........................................................................................................501
Supported Error Codes.............................................................................................................................................. 503
mtrace Scenarios.........................................................................................................................................................503
33 Multicast Listener Discovery Protocol...................................................................................... 509
MLD timers......................................................................................................................................................................... 512
Reducing Host Response Burstiness.........................................................................................................................512
Clearing MLD groups.........................................................................................................................................................512
Debugging MLD................................................................................................................................................................. 513
Explicit Tracking................................................................................................................................................................. 513
Reducing Leave Latency...................................................................................................................................................513
Displaying MLD groups table............................................................................................................................................ 513
Displaying MLD Interfaces................................................................................................................................................ 513
MLD Snooping....................................................................................................................................................................514
Enable MLD Snooping................................................................................................................................................. 514
Disable MLD Snooping.................................................................................................................................................514
Configure the switch as a querier..............................................................................................................................514
Specify port as connected to multicast router........................................................................................................ 515
Enable Snooping Explicit Tracking............................................................................................................................. 515
Display the MLD Snooping Table............................................................................................................................... 515
34 Object Tracking...................................................................................................................... 516
Object Tracking Overview................................................................................................................................................ 516
Track Layer 2 Interfaces............................................................................................................................................. 517
Track Layer 3 Interfaces............................................................................................................................................. 517
Track IPv4 and IPv6 Routes....................................................................................................................................... 517
Set Tracking Delays..................................................................................................................................................... 518
VRRP Object Tracking................................................................................................................................................ 519
Object Tracking Configuration......................................................................................................................................... 519
Tracking a Layer 2 Interface.......................................................................................................................................519
Tracking a Layer 3 Interface...................................................................................................................................... 520
Track an IPv4/IPv6 Route.......................................................................................................................................... 521
Displaying Tracked Objects..............................................................................................................................................524
35 Open Shortest Path First (OSPFv2 and OSPFv3)...................................................................... 526
Protocol Overview............................................................................................................................................................ 526
Autonomous System (AS) Areas.............................................................................................................................. 526
Area Types....................................................................................................................................................................527
Networks and Neighbors............................................................................................................................................528
Router Types............................................................................................................................................................... 528
Designated and Backup Designated Routers.......................................................................................................... 529
Link-State Advertisements (LSAs)...........................................................................................................................529
Router Priority and Cost.............................................................................................................................................530
OSPF with Dell EMC Networking OS............................................................................................................................. 531
Graceful Restart...........................................................................................................................................................531
Fast Convergence (OSPFv2, IPv4 Only)................................................................................................................. 532
Multi-Process OSPFv2 with VRF..............................................................................................................................532
OSPF ACK Packing.....................................................................................................................................................533
Contents
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