Users Guide

Protocol Overview......................................................................................................................................................... 501
Spanning Tree Variations..............................................................................................................................................502
Implementation Information................................................................................................................................... 502
Configure Multiple Spanning Tree Protocol...............................................................................................................502
Related Configuration Tasks..................................................................................................................................503
Enable Multiple Spanning Tree Globally......................................................................................................................503
Adding and Removing Interfaces................................................................................................................................ 503
Creating Multiple Spanning Tree Instances............................................................................................................... 504
Influencing MSTP Root Selection............................................................................................................................... 505
Interoperate with Non-Dell Bridges............................................................................................................................ 505
Changing the Region Name or Revision.....................................................................................................................506
Modifying Global Parameters.......................................................................................................................................506
Modifying the Interface Parameters...........................................................................................................................507
Configuring an EdgePort..............................................................................................................................................508
Flush MAC Addresses after a Topology Change...................................................................................................... 509
MSTP Sample Configurations..................................................................................................................................... 509
Router 1 Running-ConfigurationRouter 2 Running-ConfigurationRouter 3 Running-
ConfigurationSFTOS Example Running-Configuration....................................................................................... 510
Debugging and Verifying MSTP Configurations.........................................................................................................513
31 Multicast Features....................................................................................................................................515
Enabling IP Multicast..................................................................................................................................................... 515
Implementation Information..........................................................................................................................................515
Multicast Policies............................................................................................................................................................516
IPv4 Multicast Policies.............................................................................................................................................516
Understanding Multicast Traceroute (mtrace)................................................................................................... 523
Printing Multicast Traceroute (mtrace) Paths.................................................................................................... 524
Supported Error Codes...........................................................................................................................................525
mtrace Scenarios.....................................................................................................................................................526
32 Object Tracking....................................................................................................................................... 532
Object Tracking Overview............................................................................................................................................532
Track Layer 2 Interfaces.........................................................................................................................................533
Track Layer 3 Interfaces.........................................................................................................................................533
Track IPv4 and IPv6 Routes...................................................................................................................................534
Set Tracking Delays.................................................................................................................................................535
VRRP Object Tracking............................................................................................................................................535
Object Tracking Configuration.....................................................................................................................................535
Tracking a Layer 2 Interface.................................................................................................................................. 535
Tracking a Layer 3 Interface.................................................................................................................................. 536
Track an IPv4/IPv6 Route..................................................................................................................................... 538
Displaying Tracked Objects...........................................................................................................................................541
33 Open Shortest Path First (OSPFv2 and OSPFv3)................................................................................... 543
Protocol Overview.........................................................................................................................................................543
Autonomous System (AS) Areas...........................................................................................................................543
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