Concept Guide

Table Of Contents
OSPF ACK Packing................................................................................................................................................... 641
Setting OSPF Adjacency with Cisco Routers..................................................................................................... 641
Configuration Information.............................................................................................................................................642
Configuration Task List for OSPFv2 (OSPF for IPv4).....................................................................................642
Sample Configurations for OSPFv2........................................................................................................................... 652
OSPFv3 NSSA................................................................................................................................................................. 654
Configuration Task List for OSPFv3 (OSPF for IPv6).......................................................................................... 654
Enabling IPv6 Unicast Routing.............................................................................................................................. 655
Assigning IPv6 Addresses on an Interface..........................................................................................................655
Assigning Area ID on an Interface.........................................................................................................................655
Assigning OSPFv3 Process ID and Router ID Globally.....................................................................................656
Assigning OSPFv3 Process ID and Router ID to a VRF...................................................................................656
Configuring the Cost of OSPFv3 Routes............................................................................................................657
Configuring Stub Areas............................................................................................................................................657
Configuring Passive-Interface............................................................................................................................... 657
Redistributing Routes...............................................................................................................................................657
Configuring a Default Route...................................................................................................................................658
OSPFv3 Authentication Using IPsec....................................................................................................................658
Troubleshooting OSPFv3........................................................................................................................................ 664
MIB Support for OSPFv3..............................................................................................................................................665
Viewing the OSPFv3 MIB....................................................................................................................................... 665
Chapter 37: Per-VLAN Spanning Tree Plus (PVST+)..................................................................666
Protocol Overview..........................................................................................................................................................666
Implementation Information..........................................................................................................................................667
Configure Per-VLAN Spanning Tree Plus................................................................................................................. 667
Enabling PVST+...............................................................................................................................................................668
Disabling PVST+..............................................................................................................................................................668
Influencing PVST+ Root Selection............................................................................................................................. 668
Modifying Global PVST+ Parameters.........................................................................................................................670
Modifying Interface PVST+ Parameters................................................................................................................... 670
Configuring an EdgePort................................................................................................................................................671
PVST+ in Multi-Vendor Networks.............................................................................................................................. 672
Enabling PVST+ Extend System ID............................................................................................................................ 672
PVST+ Sample Configurations.................................................................................................................................... 673
Chapter 38: PIM Sparse-Mode (PIM-SM).................................................................................. 675
Implementation Information..........................................................................................................................................675
Protocol Overview.......................................................................................................................................................... 675
Requesting Multicast Traffic..................................................................................................................................675
Refuse Multicast Traffic..........................................................................................................................................676
Send Multicast Traffic............................................................................................................................................. 676
Configuring PIM-SSM....................................................................................................................................................676
Related Configuration Tasks...................................................................................................................................677
Enable PIM-SM................................................................................................................................................................677
Configuring S,G Expiry Timers.....................................................................................................................................678
Configuring a Static Rendezvous Point.....................................................................................................................678
Overriding Bootstrap Router Updates................................................................................................................. 678
Configuring a Designated Router................................................................................................................................679
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