Administrator Guide

Related Conguration Tasks....................................................................................................................................517
Enable Multiple Spanning Tree Globally....................................................................................................................... 517
Creating Multiple Spanning Tree Instances................................................................................................................. 517
Inuencing MSTP Root Selection.................................................................................................................................518
Interoperate with Non-Dell Networking OS Bridges..................................................................................................519
Changing the Region Name or Revision......................................................................................................................519
Modifying Global Parameters....................................................................................................................................... 520
Enable BPDU Filtering Globally.....................................................................................................................................521
Modifying the Interface Parameters............................................................................................................................ 521
Conguring an EdgePort.............................................................................................................................................. 522
Flush MAC Addresses after a Topology Change........................................................................................................523
MSTP Sample Congurations......................................................................................................................................523
Router 1 Running-CongurationRouter 2 Running-CongurationRouter 3 Running-
CongurationSFTOS Example Running-Conguration....................................................................................... 524
Debugging and Verifying MSTP Congurations.........................................................................................................527
37 Multicast Features................................................................................................................................... 529
Enabling IP Multicast.....................................................................................................................................................529
Implementation Information..........................................................................................................................................529
First Packet Forwarding for Lossless Multicast.........................................................................................................530
Multicast Policies...........................................................................................................................................................530
IPv4 Multicast Policies..................................................................................................................................................530
Limiting the Number of Multicast Routes............................................................................................................. 531
Preventing a Host from Joining a Group............................................................................................................... 531
Rate Limiting IGMP Join Requests........................................................................................................................534
Preventing a PIM Router from Forming an Adjacency....................................................................................... 534
Preventing a Source from Registering with the RP............................................................................................ 534
Preventing a PIM Router from Processing a Join................................................................................................537
Understanding Multicast Traceroute (mtrace)...........................................................................................................537
Important Points to Remember............................................................................................................................. 538
Printing Multicast Traceroute (mtrace) Paths........................................................................................................... 538
Supported Error Codes.................................................................................................................................................539
mtrace Scenarios...........................................................................................................................................................540
38 Open Shortest Path First (OSPFv2 and OSPFv3)....................................................................................546
Protocol Overview.........................................................................................................................................................546
Autonomous System (AS) Areas........................................................................................................................... 546
Area Types................................................................................................................................................................ 547
Networks and Neighbors........................................................................................................................................548
Router Types............................................................................................................................................................ 548
Link-State Advertisements (LSAs)........................................................................................................................550
Router Priority and Cost..........................................................................................................................................551
OSPF with the Dell Networking OS............................................................................................................................552
Graceful Restart...................................................................................................................................................... 553
Fast Convergence (OSPFv2, IPv4 Only)..............................................................................................................554
Processing SNMP and Sending SNMP Traps......................................................................................................554
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