Concept Guide

MSTP Sample Congurations......................................................................................................................................553
Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-
CongurationSFTOS Example Running-Conguration.......................................................................................553
Debugging and Verifying MSTP Congurations........................................................................................................ 556
31 Multicast Features................................................................................................................................... 558
Enabling IP Multicast.....................................................................................................................................................558
Implementation Information......................................................................................................................................... 558
Multicast Policies...........................................................................................................................................................559
IPv4 Multicast Policies............................................................................................................................................559
Understanding Multicast Traceroute (mtrace).......................................................................................................... 566
Important Points to Remember..............................................................................................................................567
Printing Multicast Traceroute (mtrace) Paths............................................................................................................567
Supported Error Codes.................................................................................................................................................568
mtrace Scenarios...........................................................................................................................................................569
32 Object Tracking........................................................................................................................................575
Object Tracking Overview............................................................................................................................................ 575
Track Layer 2 Interfaces..........................................................................................................................................576
Track Layer 3 Interfaces..........................................................................................................................................576
Track IPv4 and IPv6 Routes....................................................................................................................................577
Set Tracking Delays..................................................................................................................................................578
VRRP Object Tracking.............................................................................................................................................578
Object Tracking Conguration......................................................................................................................................578
Tracking a Layer 2 Interface................................................................................................................................... 578
Tracking a Layer 3 Interface................................................................................................................................... 579
Track an IPv4/IPv6 Route.......................................................................................................................................581
Displaying Tracked Objects...........................................................................................................................................585
33 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................587
Protocol Overview......................................................................................................................................................... 587
Autonomous System (AS) Areas............................................................................................................................587
Area Types................................................................................................................................................................ 588
Networks and Neighbors........................................................................................................................................589
Router Types............................................................................................................................................................ 589
Designated and Backup Designated Routers........................................................................................................591
Link-State Advertisements (LSAs).........................................................................................................................591
Router Priority and Cost.........................................................................................................................................592
OSPF with Dell EMC Networking OS.........................................................................................................................593
Graceful Restart...................................................................................................................................................... 594
Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................595
Multi-Process OSPFv2 with VRF..........................................................................................................................595
OSPF ACK Packing................................................................................................................................................. 595
Setting OSPF Adjacency with Cisco Routers...................................................................................................... 595
Conguration Information.............................................................................................................................................596
Conguration Task List for OSPFv2 (OSPF for IPv4)........................................................................................ 596
Contents
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