Cisco CRS Configuration Guide

By default, NSR is globally-enabled on all LDP sessions except AToM.Note
SUMMARY STEPS
1.
configure
2.
mpls ldp
3.
nsr
4.
Use the commit or end command.
5.
(Optional) show mpls ldp [vrf vrf-name] nsr statistics
6.
(Optional) show mpls ldp vrf vrf-name nsr statistics neighbor
7.
(Optional) show mpls ldp [ vrf vrf-name] nsr summary
8.
(Optional) show mpls ldp [ vrf vrf-name] nsr pending
9.
(Optional) show mpls ldp vrf vrf-name nsr pending neighbor
10.
(Optional) show mpls ldp vrf all nsr summary
11.
(Optional) show mpls ldp nsr summary all
12.
(Optional) clear mpls ldp vrf vrf-name nsr statistics neighbor
DETAILED STEPS
PurposeCommand or Action
Enters global configuration mode.configure
Example:
RP/0/RP0/CPU0:router# configure
Step 1
Enters the MPLS LDP configuration mode.mpls ldp
Example:
RP/0/RP0/CPU0:router(config)# mpls ldp
Step 2
Enables LDP nonstop routing.nsr
Example:
RP/0/RP0/CPU0:router(config-ldp)# nsr
Step 3
commit—Saves the configuration changes and remains
within the configuration session.
Use the commit or end command.
Step 4
end—Prompts user to take one of these actions:
• Yes— Saves configuration changes and exits the
configuration session.
• No—Exits the configuration session without
committing the configuration changes.
Cisco IOS XR MPLS Configuration Guide for the Cisco CRS Router, Release 5.1.x
64
Implementing MPLS Label Distribution Protocol
Configuring LDP Nonstop Routing

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