Users Guide

Creating Multiple Spanning Tree Instances.................................................................................................................497
Inuencing MSTP Root Selection................................................................................................................................498
Interoperate with Non-Dell Bridges.............................................................................................................................498
Changing the Region Name or Revision..................................................................................................................... 499
Modifying Global Parameters.......................................................................................................................................499
Modifying the Interface Parameters........................................................................................................................... 500
Conguring an EdgePort...............................................................................................................................................501
Flush MAC Addresses after a Topology Change....................................................................................................... 502
MSTP Sample Congurations......................................................................................................................................502
Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-
CongurationSFTOS Example Running-Conguration.......................................................................................503
Debugging and Verifying MSTP Congurations........................................................................................................ 506
30 Multicast Features...................................................................................................................................508
Enabling IP Multicast.....................................................................................................................................................508
Implementation Information......................................................................................................................................... 508
Multicast Policies...........................................................................................................................................................509
IPv4 Multicast Policies............................................................................................................................................509
Understanding Multicast Traceroute (mtrace)........................................................................................................... 516
Important Points to Remember.............................................................................................................................. 517
Printing Multicast Traceroute (mtrace) Paths............................................................................................................ 517
Supported Error Codes..................................................................................................................................................518
mtrace Scenarios............................................................................................................................................................519
31 Object Tracking........................................................................................................................................ 525
Object Tracking Overview............................................................................................................................................ 525
Track Layer 2 Interfaces..........................................................................................................................................526
Track Layer 3 Interfaces..........................................................................................................................................526
Track IPv4 and IPv6 Routes................................................................................................................................... 527
Set Tracking Delays................................................................................................................................................. 528
VRRP Object Tracking............................................................................................................................................ 528
Object Tracking Conguration......................................................................................................................................528
Tracking a Layer 2 Interface................................................................................................................................... 528
Tracking a Layer 3 Interface................................................................................................................................... 529
Track an IPv4/IPv6 Route.......................................................................................................................................531
Displaying Tracked Objects...........................................................................................................................................534
32 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................536
Protocol Overview.........................................................................................................................................................536
Autonomous System (AS) Areas........................................................................................................................... 536
Area Types................................................................................................................................................................ 537
Networks and Neighbors........................................................................................................................................538
Router Types............................................................................................................................................................ 538
Designated and Backup Designated Routers.......................................................................................................540
Link-State Advertisements (LSAs)........................................................................................................................540
Router Priority and Cost..........................................................................................................................................541
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Contents