Specifications

mpls ldp graceful-restart timers forwarding-holding
MP-220
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
mpls ldp graceful-restart timers forwarding-holding
To specify the amount of time the Multiprotocol Label Switching (MPLS) forwarding state should be
preserved after the control plane restarts, use the mpls ldp graceful-restart timers forwarding-holding
command in global configuration mode. To revert to the default timer value, use the no form of this
command.
mpls ldp graceful-restart timers forwarding-holding se
cs
no mpl
s ldp graceful-restart timers forwarding-holding
Syntax Description
Command Default After the control plane on the Cisco 7500 and Cisco 10000 series router restarts, the MPLS forwarding
s
tate is preserved for 600 seconds.
Command Modes Global configuration
Command History
Usage Guidelines Configuring the local forwarding-holding timer to a value less than the IOS FT Reconnect Timeout of
120
seconds may prevent a Label Distribution Protocol (LDP) session from being established. Configure
the forwarding-holding timer to less than 120 seconds only if an LDP neighbor has an FT Reconnect
Timeout value of less than 120 seconds.
If the timer expires, all entries that are marked stale are deleted.
Examples In the following example, the MPLS forwarding state is preserved for 300 seconds after the control plane
re
starts:
Router(config)# mpls ldp graceful-restart timers forwarding-holding 300
secs The amount of time (in seconds) that the MPLS forwarding state should be
preserved after the control plane restarts. The default is 600 seconds. The
acceptable range of values is 30 to 600 seconds.
Release Modification
12.2(25)S This command was introduced.
12.2(28)SB This command was integrated into Cisco IOS Release 12.2(28)SB and
i
mplemented on the Cisco 10000 series routers.
12.2(33)SRA This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2(33)SXH This command was integrated into Cisco IOS Release 12.2(33)SXH.