PurposeCommand or Action
Configures the IS-IS protocol on an interface and enters ISIS
interface configuration mode.
interface type interface-path-id
Example:
RP/0/RP0/CPU0:router(config-isis)# interface
Step 3
POS 0/2/0/0
RP/0/RP0/CPU0:router(config-isis-if)#
Enters address family configuration mode for configuring IS-IS
routing for a standard IP version 4 (IPv4) address prefix.
address-family {ipv4 } unicast
Example:
RP/0/RP0/CPU0:router(config-isis-if)#
Step 4
address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-isis-if-af)#
Enables LDP IGP synchronization.mpls ldp sync
Example:
RP/0/RP0/CPU0:router(config-isis-if-af)# mpls
ldp sync
Step 5
commit—Saves the configuration changes and remains within
the configuration session.
Use the commit or end command.
Step 6
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.
• Cancel—Remains in the configuration session, without
committing the configuration changes.
Related Topics
IGP Synchronization, on page 17
Configuring LDP IGP Synchronization—ISIS: Example, on page 83
Configuring LDP IGP Synchronization Delay Interval
Perform this task to configure the LDP IGP synchronization delay interval.
By default, LDP does not delay declaring sync up as soon as convergence conditions are met.
Cisco IOS XR MPLS Configuration Guide for the Cisco CRS Router, Release 5.1.x
56
Implementing MPLS Label Distribution Protocol
Configuring LDP IGP Synchronization Delay Interval
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