Users Guide

Table Of Contents
Creating Multiple Spanning Tree Instances................................................................................................................ 533
Inuencing MSTP Root Selection................................................................................................................................534
Interoperate with Non-Dell Bridges.............................................................................................................................534
Changing the Region Name or Revision..................................................................................................................... 535
Modifying Global Parameters.......................................................................................................................................535
Modifying the Interface Parameters........................................................................................................................... 536
Conguring an EdgePort.............................................................................................................................................. 537
Flush MAC Addresses after a Topology Change....................................................................................................... 538
MSTP Sample Congurations......................................................................................................................................538
Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-
CongurationSFTOS Example Running-Conguration.......................................................................................539
Debugging and Verifying MSTP Congurations........................................................................................................ 542
31 Multicast Features....................................................................................................................................544
Enabling IP Multicast.....................................................................................................................................................544
Implementation Information..........................................................................................................................................544
Multicast Policies...........................................................................................................................................................545
IPv4 Multicast Policies............................................................................................................................................545
Understanding Multicast Traceroute (mtrace).......................................................................................................... 552
Important Points to Remember............................................................................................................................. 553
Printing Multicast Traceroute (mtrace) Paths........................................................................................................... 553
Supported Error Codes.................................................................................................................................................554
mtrace Scenarios...........................................................................................................................................................555
32 Object Tracking........................................................................................................................................ 561
Object Tracking Overview.............................................................................................................................................561
Track Layer 2 Interfaces..........................................................................................................................................562
Track Layer 3 Interfaces..........................................................................................................................................562
Track IPv4 and IPv6 Routes................................................................................................................................... 563
Set Tracking Delays................................................................................................................................................. 564
VRRP Object Tracking............................................................................................................................................ 564
Object Tracking Conguration..................................................................................................................................... 564
Tracking a Layer 2 Interface................................................................................................................................... 564
Tracking a Layer 3 Interface................................................................................................................................... 565
Track an IPv4/IPv6 Route...................................................................................................................................... 567
Displaying Tracked Objects...........................................................................................................................................570
33 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................572
Protocol Overview......................................................................................................................................................... 572
Autonomous System (AS) Areas............................................................................................................................572
Area Types................................................................................................................................................................ 573
Networks and Neighbors........................................................................................................................................ 574
Router Types.............................................................................................................................................................574
Designated and Backup Designated Routers....................................................................................................... 576
Link-State Advertisements (LSAs)........................................................................................................................ 576
Router Priority and Cost......................................................................................................................................... 577
Contents
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