Administrator Guide

Creating Multiple Spanning Tree Instances................................................................................................................500
Inuencing MSTP Root Selection................................................................................................................................ 501
Interoperate with Non-Dell Bridges..............................................................................................................................501
Changing the Region Name or Revision..................................................................................................................... 502
Modifying Global Parameters.......................................................................................................................................502
Modifying the Interface Parameters........................................................................................................................... 503
Conguring an EdgePort.............................................................................................................................................. 504
Flush MAC Addresses after a Topology Change....................................................................................................... 505
MSTP Sample Congurations......................................................................................................................................505
Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-
CongurationSFTOS Example Running-Conguration.......................................................................................506
Debugging and Verifying MSTP Congurations........................................................................................................ 509
30 Multicast Features.................................................................................................................................... 511
Enabling IP Multicast...................................................................................................................................................... 511
Implementation Information........................................................................................................................................... 511
Multicast Policies............................................................................................................................................................512
IPv4 Multicast Policies.............................................................................................................................................512
Understanding Multicast Traceroute (mtrace)........................................................................................................... 519
Important Points to Remember............................................................................................................................. 520
Printing Multicast Traceroute (mtrace) Paths........................................................................................................... 520
Supported Error Codes..................................................................................................................................................521
mtrace Scenarios...........................................................................................................................................................522
31 Object Tracking........................................................................................................................................ 528
Object Tracking Overview............................................................................................................................................ 528
Track Layer 2 Interfaces..........................................................................................................................................529
Track Layer 3 Interfaces..........................................................................................................................................529
Track IPv4 and IPv6 Routes...................................................................................................................................530
Set Tracking Delays.................................................................................................................................................. 531
VRRP Object Tracking............................................................................................................................................. 531
Object Tracking Conguration...................................................................................................................................... 531
Tracking a Layer 2 Interface.................................................................................................................................... 531
Tracking a Layer 3 Interface................................................................................................................................... 532
Track an IPv4/IPv6 Route...................................................................................................................................... 534
Displaying Tracked Objects........................................................................................................................................... 537
32 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................539
Protocol Overview.........................................................................................................................................................539
Autonomous System (AS) Areas........................................................................................................................... 539
Area Types................................................................................................................................................................ 540
Networks and Neighbors.........................................................................................................................................541
Router Types............................................................................................................................................................. 541
Designated and Backup Designated Routers....................................................................................................... 543
Link-State Advertisements (LSAs)........................................................................................................................543
Router Priority and Cost.........................................................................................................................................544
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Contents