Cisco CRS Configuration Guide

Enabling LDP Auto-Configuration in an Area for a Specified OSPF Instance
Perform this task to enable IGP auto-configuration in a defined area with a specified OSPF process name.
You can disable auto-configuration on a per-interface basis. This lets LDP enable all IGP interfaces except
those that are explicitly disabled.
This feature is supported for IPv4 unicast family in default VRF only.Note
SUMMARY STEPS
1.
configure
2.
router ospf process-name
3.
area area-id
4.
mpls ldp auto-config
5.
interface type interface-path-id
6.
Use the commit or end command.
DETAILED STEPS
PurposeCommand or Action
Enters global configuration mode.configure
Example:
RP/0/RP0/CPU0:router# configure
Step 1
Enters a uniquely identifiable OSPF routing process. The process
name is any alphanumeric string no longer than 40 characters
without spaces.
router ospf process-name
Example:
RP/0/RP0/CPU0:router(config)# router ospf
Step 2
100
RP/0/RP0/CPU0:router(config-ospf)#
Configures an OSPF area and identifier.
area area-id
Step 3
Example:
RP/0/RP0/CPU0:router(config-ospf)# area 8
RP/0/RP0/CPU0:router(config-ospf-ar)#
area-id
Either a decimal value or an IP address.
Enables LDP auto-configuration.mpls ldp auto-config
Example:
RP/0/RP0/CPU0:router(config-ospf-ar)# mpls
ldp auto-config
Step 4
Cisco IOS XR MPLS Configuration Guide for the Cisco CRS Router, Release 5.1.x
61
Implementing MPLS Label Distribution Protocol
Enabling LDP Auto-Configuration in an Area for a Specified OSPF Instance

Cisco CRS Specifications

General

Operating System	Cisco IOS XR
Product Type	Core Router
Form Factor	Modular Chassis
Dimensions	Varies by chassis type
Weight	Varies by chassis type
Architecture	Distributed
Switch Fabric	Multi-stage
Interface Support	Ethernet, SONET/SDH, OTN
Interfaces/Ports	Varies by line card
Port Density	Varies by line card
Routing Protocol	BGP, IS-IS, OSPF, MPLS
Management	CLI, SNMP
Power Supply	Redundant, hot-swappable
Cooling	Redundant, Hot-swappable Fan Trays
Supported Protocols	IPv4, IPv6, MPLS
Management Interfaces	Ethernet, console
Security Features	ACLs