Specifications

mpls traffic-eng reoptimize timers frequency
MP-346
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
mpls traffic-eng reoptimize timers frequency
To control the frequency with which tunnels with established label switched paths (LSPs) are checked
for better LSPs, use the mpls traffic-eng reoptimize timers frequency command in global
configuration mode. To disable this function, use the no form of this command.
mpls traffic-eng reoptimize timers frequency se
conds
no mpls traffic-eng reoptimize timers frequency
Syntax Description
Defaults 3600 seconds (1 hour)
Command Modes Global configuration
Command History
Usage Guidelines A device with traffic engineering tunnels periodically examines tunnels with established LSPs to learn
if
better LSPs are available. If a better LSP seems to be available, the device attempts to signal the better
LSP; if the signaling is successful, the device replaces the old, inferior LSP with the new, better LSP.
Note If the lockdown keyword is specified with the tunnel mpls traffic-eng path-option command, then a
reoptimize check is not done on the tunnel.
If you configure a traffic engineering tunnel with an explicit path that is not fully specified (a series of
router IDs or a combination of router IDs and interface addresses), then reoptimization may not occur.
Note If you specify a low reoptimization frequency (for example, less than 30 seconds), there may be an
increase in CPU utilization for configurations with a large number of traffic engineering tunnels.
Examples The following example shows how to set the reoptimization frequency to 1 day:
Router(config)# mpls traffic-eng reoptimize timers frequency 86400
seconds Sets the frequency of reoptimization (in seconds). A value of 0 disables
reoptimization. The range of values is 0 to 604800 seconds (1 week).
Release Modification
12.0(5)S This command was introduced.
12.2(28)SB This command was integrated into Cisco IOS Release 12.2(28)SB.
12.2(33)SRA This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2SX This command is supported in the Cisco IOS Release 12.2SX train. Support
i
n a specific 12.2SX release of this train depends on your feature set,
platform, and platform hardware.