Specifications

mpls ldp igp sync
MP-229
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
mpls ldp igp sync
To enable Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP)-Interior Gateway
Protocol (IGP) synchronization on an interface that belongs to an Open Shortest Path First (OSPF)
process, use the mpls ldp igp sync command in interface configuration mode. To disable MPLS
LDP-IGP synchronization, use the no form of the command.
mpls ldp igp sync [del
ay seconds]
no mpls ldp igp sync [de
lay]
Syntax Description
Command Default If MPLS LDP-IGP synchronization is enabled on an OSPF p
rocess, MPLS LDP-IGP synchronization is
enabled by deffault on all interfaces configured for the process. A delay timer is not set.
Command Modes Interface configuration (config-if)
Command History
Usage Guidelines This command works with the mpl
s ldp sync command, which enables MPLS LDP-IGP synchronization
on all interfaces that belong to an OSPF process. To disable MPLS LDP-IGP synchronization on a
selected interface, use the no mpls ldp igp sync command in the configuration for that interface.
Use the mpls ldp
igp sync delay seconds command to configure a delay time for MPLS LDP and IGP
synchronization on an interface-by-interface basis. To remove the delay timer from a specified interface,
use the no mpls ldp igp sync delay command. This command sets the delay time to 0 seconds, but leaves
MPLS LDP-IGP synchronization enabled.
When LDP is fully established and synchronized, LDP checks the delay timer:
• If you configured a delay time, LDP starts the timer. When the timer expires, LDP checks that
synchronization is still valid and notifies the OSPF process.
• If the delay time is not configured, synchronization is disabled or down, or an interface is removed
from an IGP process, LDP stops the timer and immediately notifies the OSPF process.
delay (Optional) Sets a delay timer for MPLS LDP-IGP synchronization.
seconds (Optional) Delay time, in seconds. The range is from 5 to 60 seconds.
Release Modification
12.0(30)S This command was introduced.
12.3(14)T This command was integrated into Cisco IOS Release 12.3(14)T.
12.0(32)S The optional delay se
conds keyword and argument were added.
12.4(12) This command was integrated into Cisco IOS Release 12.4(12).
12.2(33)SRC This command was integrated into Cisco IOS Release 12.(33)SRC.
12.2(33)SB This command was integrated into Cisco IOS Release 12.2(33)SB.
12.2(33)SCA This command was integrated into Cisco IOS Release 12.2(33)SCA.