Prerequisites For Implementing Ospf - Cisco ASR 9000 Series Configuration Manual

Prerequisites for Implementing OSPF

Release
Release 4.3.0
Release 5.3.0
Release 6.0.1
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Prerequisites for Implementing OSPF
The following are prerequisites for implementing OSPF on Cisco IOS XR software:
• You must be in a user group associated with a task group that includes the proper task IDs. The command
• Configuration tasks for OSPFv3 assume that you are familiar with IPv6 addressing and basic
• Before you enable OSPFv3 on an interface, you must perform the following tasks:
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.1.x
332
Prerequisites for Implementing OSPF , page 332
Information About Implementing OSPF , page 333
How to Implement OSPF , page 358
Configuring IP Fast Reroute Loop-free Alternate, page 411
Configuration Examples for Implementing OSPF , page 414
Where to Go Next, page 421
Additional References, page 421
reference guides include the task IDs required for each command. If you suspect user group assignment
is preventing you from using a command, contact your AAA administrator for assistance.
configuration. See the Implementing Network Stack IPv4 and IPv6 on Cisco ASR 9000 Series Router
module of the Cisco ASR 9000 Series Aggregation Services Router IP Addresses and Services
Configuration Guide for information on IPv6 routing and addressing.
◦ Complete the OSPF network strategy and planning for your IPv6 network. For example, you must
decide whether multiple areas are required.
◦ Enable IPv6 on the interface.
Modification
Support was added for the following features:
• OSPFv2 VRF Lite
• OSPFv3 Timers Update
Support was added for the following features:
• OSPFv2 Segment Routing Topology Independent Fast
Reroute
• 64 ECMP for ASR 9000 Enhanced Ethernet Line Card
The following features were supported:
• Excessive Punt Flow Trap Processing
Implementing OSPF
OL-30423-03