Deployment Guide

Table Of Contents
Understanding Multicast Traceroute (mtrace)..................................................................................................522
Printing Multicast Traceroute (mtrace) Paths.................................................................................................. 522
Supported Error Codes............................................................................................................................................524
mtrace Scenarios...................................................................................................................................................... 525
Chapter 33: Multicast Listener Discovery Protocol.................................................................... 531
MLD timers.......................................................................................................................................................................534
Reducing Host Response Burstiness....................................................................................................................534
Clearing MLD groups..................................................................................................................................................... 535
Debugging MLD...............................................................................................................................................................535
Explicit Tracking..............................................................................................................................................................535
Reducing Leave Latency...............................................................................................................................................535
Displaying MLD groups table........................................................................................................................................535
Displaying MLD Interfaces............................................................................................................................................536
MLD Snooping................................................................................................................................................................. 536
Enable MLD Snooping..............................................................................................................................................536
Disable MLD Snooping............................................................................................................................................. 536
Configure the switch as a querier......................................................................................................................... 537
Specify port as connected to multicast router.................................................................................................. 537
Enable Snooping Explicit Tracking........................................................................................................................ 537
Display the MLD Snooping Table...........................................................................................................................537
Chapter 34: Object Tracking......................................................................................................538
Object Tracking Overview............................................................................................................................................ 538
Track Layer 2 Interfaces......................................................................................................................................... 539
Track Layer 3 Interfaces......................................................................................................................................... 539
Track IPv4 and IPv6 Routes...................................................................................................................................539
Set Tracking Delays..................................................................................................................................................540
VRRP Object Tracking..............................................................................................................................................541
Object Tracking Configuration..................................................................................................................................... 541
Tracking a Layer 2 Interface................................................................................................................................... 541
Tracking a Layer 3 Interface.................................................................................................................................. 542
Track an IPv4/IPv6 Route...................................................................................................................................... 543
Displaying Tracked Objects.......................................................................................................................................... 546
Chapter 35: Open Shortest Path First (OSPFv2 and OSPFv3)................................................... 548
Protocol Overview..........................................................................................................................................................548
Autonomous System (AS) Areas...........................................................................................................................548
Area Types..................................................................................................................................................................549
Networks and Neighbors........................................................................................................................................ 550
Router Types..............................................................................................................................................................550
Designated and Backup Designated Routers......................................................................................................551
Link-State Advertisements (LSAs)....................................................................................................................... 551
Router Priority and Cost......................................................................................................................................... 552
OSPF with Dell EMC Networking OS........................................................................................................................ 553
Graceful Restart........................................................................................................................................................553
Fast Convergence (OSPFv2, IPv4 Only)............................................................................................................ 554
Multi-Process OSPFv2 with VRF......................................................................................................................... 555
OSPF ACK Packing.................................................................................................................................................. 555
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