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protect-adaptivity periodic
Configures the backup path to recompute its SPF after the defined interval since the last SPF computation.
Syntax: protect-adaptivity periodic time {s | ms} jitter time {s | ms}
no protect-adaptivity
time
Specifies the number of seconds or milliseconds the router waits since the last SPF, before recomputing the SPF for this backup path.
Valid values are 0.0 to 4294967.00 0 <s | ms> where s is seconds and ms is milliseconds. Default: 360s
jitter time
Specifies the number of seconds to offset to the periodic timer to prevent the recomputation of many backup paths at the same time.
Valid values are 0.0 to 4294967.00 0 <s | ms> where s is seconds and ms is milliseconds. Default: 72s
Description: The protect-adaptivity attribute determines how a backup path responds when new network resources become available or when resource parameters change such that preferred paths become available. There are four protect-adaptivity models: disabled, pinned, periodic, and linear.
Periodic protect-adaptivity means that the SPF for the backup path 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 backup paths, the defined timer is "jittered" using the defined jitter value.
Use the protect-adaptivity periodic command to configure the backup path to recompute its SPF using the defined timer.
Use the no protect-adaptivity command to remove an protect-adaptivity specification.
Factory Default: Periodic 3600s jitter 720.
Command Mode: If the PLR is the primary tunnel ingress: Traffic engineering tunnel, Traffic engineering parameter-set, traffic engineering tunnel default, and traffic engineering midpoint default.
If the PLR is a primary tunnel midpoint: Traffic engineering midpoint default and traffic engineering tunnel default.Example 1: In the following example, the protect-adaptivity periodic command configures midpoint defaults to recompute backup path 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)#midpoint default
router(config-te-midpoint-default)#protect-adaptivity periodic 450s jitter 45s
Example 2: In the following example, the no protect-adaptivity command removes the protect-adaptivity specification:
router1#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
router(config)#mpls te ospf
router(config-te)#midpoint default
router(config-te-midpoint-default)#no protect-adaptivity
Related Commands: midpoint default
protect-adaptivity disabled
protect-adaptivity linear
protect-adaptivity pinned
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Copyright © 2004
Avici Systems Inc.
Avici® and TSR®
is a registered trademark of Avici Systems Inc.
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Source
File Name: LocalProtectCommands.fm
HTML File Name: LocalProtectCommands16.html
Last Updated: 12/19/04 at 14:59:39