Reference Guide

Configure Multiple Spanning Tree Protocol..............................................................................................................501
Related Configuration Tasks...................................................................................................................................501
Enable Multiple Spanning Tree Globally.................................................................................................................... 502
Adding and Removing Interfaces................................................................................................................................ 502
Creating Multiple Spanning Tree Instances..............................................................................................................502
Influencing MSTP Root Selection...............................................................................................................................503
Interoperate with Non-Dell Bridges............................................................................................................................504
Changing the Region Name or Revision....................................................................................................................504
Modifying Global Parameters.......................................................................................................................................504
Modifying the Interface Parameters..........................................................................................................................505
Configuring an EdgePort.............................................................................................................................................. 506
Flush MAC Addresses after a Topology Change.....................................................................................................507
MSTP Sample Configurations...................................................................................................................................... 507
Debugging and Verifying MSTP Configurations.......................................................................................................510
Chapter 34: Multicast Features..................................................................................................512
Enabling IP Multicast...................................................................................................................................................... 512
Multicast with ECMP......................................................................................................................................................512
Implementation Information.......................................................................................................................................... 513
First Packet Forwarding for Lossless Multicast.......................................................................................................514
Multicast Policies.............................................................................................................................................................514
IPv4 Multicast Policies..............................................................................................................................................514
Chapter 35: Open Shortest Path First (OSPFv2 and OSPFv3)....................................................521
Protocol Overview...........................................................................................................................................................521
Autonomous System (AS) Areas............................................................................................................................521
Area Types..................................................................................................................................................................522
Networks and Neighbors.........................................................................................................................................523
Router Types..............................................................................................................................................................523
Designated and Backup Designated Routers..................................................................................................... 524
Link-State Advertisements (LSAs).......................................................................................................................524
Virtual Links................................................................................................................................................................525
Router Priority and Cost......................................................................................................................................... 526
OSPF Implementation....................................................................................................................................................526
Fast Convergence (OSPFv2, IPv4 Only).............................................................................................................527
Multi-Process OSPFv2 (IPv4 only).......................................................................................................................527
RFC-2328 Compliant OSPF Flooding...................................................................................................................527
OSPF ACK Packing...................................................................................................................................................528
Setting OSPF Adjacency with Cisco Routers.................................................................................................... 528
Configuration Information.............................................................................................................................................529
Configuration Task List for OSPFv2 (OSPF for IPv4).....................................................................................529
Sample Configurations for OSPFv2............................................................................................................................ 541
Configuration Task List for OSPFv3 (OSPF for IPv6).......................................................................................... 542
Enabling IPv6 Unicast Routing...............................................................................................................................542
Assigning IPv6 Addresses on an Interface..........................................................................................................543
Assigning Area ID on an Interface.........................................................................................................................543
Assigning OSPFv3 Process ID and Router ID Globally.....................................................................................543
Configuring Stub Areas............................................................................................................................................544
Configuring Passive-Interface............................................................................................................................... 544
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