Reference Guide

Modifying Global Parameters...............................................................................................................................546
Modifying the Interface Parameters.................................................................................................................... 547
Configuring an EdgePort.......................................................................................................................................548
Flush MAC Addresses after a Topology Change..................................................................................................549
MSTP Sample Configurations...............................................................................................................................549
Router 1 Running-ConfigurationRouter 2 Running-ConfigurationRouter 3 Running-ConfigurationSFTOS
Example Running-Configuration.....................................................................................................................550
Debugging and Verifying MSTP Configurations...................................................................................................552
32 Multicast Features................................................................................................................ 555
Enabling IP Multicast............................................................................................................................................555
Multicast with ECMP............................................................................................................................................ 555
Implementation Information................................................................................................................................. 556
First Packet Forwarding for Lossless Multicast................................................................................................... 557
Multicast Policies................................................................................................................................................. 557
IPv4 Multicast Policies...................................................................................................................................557
33 Open Shortest Path First (OSPFv2 and OSPFv3).............................................................. 565
Protocol Overview................................................................................................................................................ 565
Autonomous System (AS) Areas....................................................................................................................565
Area Types..................................................................................................................................................... 566
Networks and Neighbors............................................................................................................................... 567
Router Types.................................................................................................................................................. 567
Designated and Backup Designated Routers................................................................................................ 569
Link-State Advertisements (LSAs)..................................................................................................................569
Virtual Links....................................................................................................................................................570
Router Priority and Cost................................................................................................................................. 570
OSPF with FTOS.................................................................................................................................................... 571
Graceful Restart............................................................................................................................................. 572
Fast Convergence (OSPFv2, IPv4 Only).......................................................................................................... 573
Multi-Process OSPFv2 (IPv4 only)..................................................................................................................573
RFC-2328 Compliant OSPF Flooding............................................................................................................... 573
OSPF ACK Packing......................................................................................................................................... 574
Setting OSPF Adjacency with Cisco Routers.................................................................................................575
Configuration Information.....................................................................................................................................575
Configuration Task List for OSPFv2 (OSPF for IPv4).......................................................................................576
Sample Configurations for OSPFv2.......................................................................................................................589
Basic OSPFv2 Router Topology......................................................................................................................589
OSPF Area 0 — Gl 1/1 and 1/2........................................................................................................................590
OSPF Area 0 — Gl 3/1 and 3/2........................................................................................................................590
OSPF Area 0 — Gl 2/1 and 2/2........................................................................................................................591
Configuration Task List for OSPFv3 (OSPF for IPv6)............................................................................................. 591