Concept Guide

Spanning Tree Variations.............................................................................................................................................. 535
Implementation Information................................................................................................................................... 535
Congure Multiple Spanning Tree Protocol................................................................................................................535
Related Conguration Tasks...................................................................................................................................536
Enable Multiple Spanning Tree Globally...................................................................................................................... 536
Adding and Removing Interfaces.................................................................................................................................536
Creating Multiple Spanning Tree Instances................................................................................................................ 537
Inuencing MSTP Root Selection................................................................................................................................538
Interoperate with Non-Dell Bridges.............................................................................................................................538
Changing the Region Name or Revision..................................................................................................................... 539
Modifying Global Parameters.......................................................................................................................................539
Modifying the Interface Parameters........................................................................................................................... 540
Conguring an EdgePort...............................................................................................................................................541
Flush MAC Addresses after a Topology Change....................................................................................................... 542
MSTP Sample Congurations......................................................................................................................................542
Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-
CongurationSFTOS Example Running-Conguration.......................................................................................543
Debugging and Verifying MSTP Congurations........................................................................................................ 546
31 Multicast Features....................................................................................................................................548
Enabling IP Multicast.....................................................................................................................................................548
Implementation Information..........................................................................................................................................548
Multicast Policies...........................................................................................................................................................549
IPv4 Multicast Policies............................................................................................................................................549
Understanding Multicast Traceroute (mtrace).......................................................................................................... 556
Important Points to Remember..............................................................................................................................557
Printing Multicast Traceroute (mtrace) Paths........................................................................................................... 557
Supported Error Codes.................................................................................................................................................558
mtrace Scenarios...........................................................................................................................................................559
32 Object Tracking....................................................................................................................................... 565
Object Tracking Overview............................................................................................................................................ 565
Track Layer 2 Interfaces......................................................................................................................................... 566
Track Layer 3 Interfaces......................................................................................................................................... 566
Track IPv4 and IPv6 Routes................................................................................................................................... 567
Set Tracking Delays................................................................................................................................................. 568
VRRP Object Tracking............................................................................................................................................ 568
Object Tracking Conguration..................................................................................................................................... 568
Tracking a Layer 2 Interface................................................................................................................................... 568
Tracking a Layer 3 Interface................................................................................................................................... 569
Track an IPv4/IPv6 Route....................................................................................................................................... 571
Displaying Tracked Objects...........................................................................................................................................575
33 Open Shortest Path First (OSPFv2 and OSPFv3).................................................................................... 577
Protocol Overview......................................................................................................................................................... 577
Autonomous System (AS) Areas............................................................................................................................577
Contents
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