Cisco CRS Configuration Manual page 269

Implementing MPLS Layer 3 VPNs
Example:
RP/0/RP0/CPU0:router(config)# mpls ldp
Enables MPLS LDP configuration mode.
Step 3 router-id { router-id }
Example:
RP/0/RP0/CPU0:router(config-ldp)# router-id 1.1.1.1
Configures a router ID for the OSPF process.
We recommend using a stable IP address as the router
Note
ID.
Step 4 discovery hello holdtime seconds
Example:
RP/0/RP0/CPU0:router(config-ldp)# discovery hello holdtime 40
Defines the period of time a discovered LDP neighbor is remembered without receipt of an LDP Hello message from
the neighbor.
We recommend using a stable IP address as the router
Note
ID.
Step 5 discovery hello interval seconds
Example:
RP/0/RP0/CPU0:router(config-ldp)# discovery hello holdtime 20
Defines the period of time between the sending of consecutive Hello messages.
Step 6 nsr
Example:
RP/0/RP0/CPU0:router(config-ldp)# nsr
Activates BGP NSR.
Step 7 graceful-restart
Example:
RP/0/RP0/CPU0:router(config-ldp)# graceful-restart
Enables graceful restart on the router.
Step 8 graceful-restart reconnect-timeout seconds
Example:
RP/0/RP0/CPU0:router(config-ldp)# graceful-restart recoonect-timeout 180
Defines the time for which the neighbor should wait for a reconnection if the LDP session is lost.
Step 9 graceful-restart forwarding-state-holdtime seconds
Cisco IOS XR Virtual Private Network Configuration Guide for the Cisco CRS Router, Release 6.1.x
Configuring L3VPN over GRE
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