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adaptivity periodic
Configures the tunnel to recompute its SPF after the defined interval since the last SPF computation.
Syntax: adaptivity periodic time {s | ms} jitter time {s | ms}
no adaptivity
time
Specifies the number of seconds or milliseconds the router waits since the last SPF, before recomputing the SPF for this tunnel, default tunnel or tunnel parameter-set.
Valid values are 0.0 to 4294967.00 0 <s | ms> where s is seconds and ms is milliseconds.
jitter time
Specifies the number of seconds to offset to the periodic timer to prevent the recomputation of many LSPs at the same time.
Valid values are 0.0 to 4294967.00 0 <s | ms> where s is seconds and ms is milliseconds.
Description: The adaptivity attribute determines how a tunnel responds when new network resources become available or when resource parameters change such that "better" paths become available. There are 4 adaptivity models: disabled, pinned, periodic, and linear.
Periodic adaptivity means that the SPF for the tunnel will be recalculated using the specified timer. The SPF is recomputed using the specified timer regardless of how or whether the traffic engineering data base has changed. To prevent the simultaneous recomputation of multiple tunnels, the defined timer is "jittered" using the defined jitter value.
Use the adaptivity periodic command to configure the tunnel, default tunnel or parameter-set to recompute its SPF using the defined timer.
Use the no adaptivity command to remove an adaptivity specification.
Factory Default: Periodic 3600s jitter 720s.
Command Mode: Traffic engineering parameter-set and traffic engineering tunnel-name.
Example 1: In the following example, the adaptivity periodic command configures the tunnel to recompute its SPF every 450 seconds with a "jitter" value of plus or minus 45 seconds:
router1#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
router(config)#mpls te ospf
router(config-te)#tunnel oc12toBos
router(config-te-tunnel)#adaptivity periodic 450s jitter 45s
Example 2: In the following example, the no adaptivity command removes the adaptivity specification:
router1#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
router(config)#mpls te ospf
router(config-te)#tunnel oc12toBos
router(config-te-tunnel)#no adaptivity
Related Commands: adaptivity disabled
adaptivity linear
adaptivity pinned
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Avici Systems Inc.
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Source
File Name: TE%20Commands.fm
HTML File Name: TE%20Commands4.html
Last Updated: 12/19/04 at 14:56:07