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Enable Multiple Spanning Tree Globally.......................................................................................................................579
Adding and Removing Interfaces................................................................................................................................. 579
Creating Multiple Spanning Tree Instances................................................................................................................580
Inuencing MSTP Root Selection................................................................................................................................ 581
Interoperate with Non-Dell Bridges..............................................................................................................................581
Changing the Region Name or Revision..................................................................................................................... 582
Modifying Global Parameters....................................................................................................................................... 582
Modifying the Interface Parameters........................................................................................................................... 583
Conguring an EdgePort.............................................................................................................................................. 584
Flush MAC Addresses after a Topology Change....................................................................................................... 585
MSTP Sample Congurations......................................................................................................................................585
Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-
CongurationSFTOS Example Running-Conguration.......................................................................................586
Debugging and Verifying MSTP Congurations........................................................................................................ 589
33 Multicast Features................................................................................................................................... 591
Enabling IP Multicast..................................................................................................................................................... 591
Implementation Information.......................................................................................................................................... 591
Multicast Policies...........................................................................................................................................................592
IPv4 Multicast Policies............................................................................................................................................ 592
Understanding Multicast Traceroute (mtrace).......................................................................................................... 599
Important Points to Remember............................................................................................................................. 600
Printing Multicast Traceroute (mtrace) Paths........................................................................................................... 600
Supported Error Codes..................................................................................................................................................601
mtrace Scenarios...........................................................................................................................................................602
34 Object Tracking....................................................................................................................................... 608
Object Tracking Overview............................................................................................................................................ 608
Track Layer 2 Interfaces......................................................................................................................................... 609
Track Layer 3 Interfaces......................................................................................................................................... 609
Track IPv4 and IPv6 Routes....................................................................................................................................610
Set Tracking Delays...................................................................................................................................................611
VRRP Object Tracking..............................................................................................................................................611
Object Tracking Conguration.......................................................................................................................................611
Tracking a Layer 2 Interface.....................................................................................................................................611
Tracking a Layer 3 Interface....................................................................................................................................612
Track an IPv4/IPv6 Route.......................................................................................................................................614
Displaying Tracked Objects............................................................................................................................................617
35 Open Shortest Path First (OSPFv2 and OSPFv3).................................................................................... 619
Protocol Overview..........................................................................................................................................................619
Autonomous System (AS) Areas............................................................................................................................619
Area Types................................................................................................................................................................ 620
Networks and Neighbors.........................................................................................................................................621
Router Types............................................................................................................................................................. 621
Designated and Backup Designated Routers....................................................................................................... 623
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