Cisco CRS Configuration Guide

PurposeCommand or Action
(Optional)
Displays aggregate summary across LDP processes and all
VRFs.
show mpls ldp nsr summary all
Example:
RP/0/RP0/CPU0:router# show mpls ldp nsr summary
all
Step 11
(Optional)
Resets LDP NSR statistics for the specified VRF for
neighbor.
clear mpls ldp vrf vrf-name nsr statistics neighbor
Example:
RP/0/RP0/CPU0:router# clear mpls ldp vrf red nsr
statistics neighbor
Step 12
Related Topics
LDP Nonstop Routing, on page 19
Configuring LDP Downstream on Demand mode
SUMMARY STEPS
1.
configure
2.
mpls ldp
3.
[vrf vrf-name session] downstream-on-demand
4.
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 MPLS LDP configuration mode.mpls ldp
Example:
RP/0/RP0/CPU0:router(config)# mpls
ldp
Step 2
(Optional) Enters downstream on demand label advertisement mode under
the specified non-default VRF.
[vrf vrf-name session]
downstream-on-demand
Step 3
Cisco IOS XR MPLS Configuration Guide for the Cisco CRS Router, Release 5.1.x
66
Implementing MPLS Label Distribution Protocol
Configuring LDP Downstream on Demand mode

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