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mpls-reflood-timer linear
Configures the Avici router to reflood the link loading information a time interval determined by a piecewise linear model based on reservation amount.
Syntax: mpls-reflood-timer linear reservation_amount1 time1....reservation_amountn timen jitter percent
no mpls-reflood-timer
reservation_amount1
Specifies a percentage of the maximum reservable bandwidth configured for this interface. LSP reservations for the specified amount of bandwidth are reflooded using the associated timer specified by the time1 value.
time1
Specifies the number of seconds since the last event that triggered a reflood the interface waits before flooding the associated reservation_amount1.
Valid values are 0.0 - 4294967.00 <s | ms> where s is seconds and ms is milliseconds.
jitter percent
Specifies a percentage of the time the advertisement is offset to prevent the establishment of many LSPs at the same time.
Valid values are. 0000% - 100.0000%.
Description: LSPs are advertised via the updates distributed by the IGP. Advertisements are flooded to the network from this interface using one of two timers:
- The global reflood timer for all interfaces configured using the mpls-reflood-timer method command in Configuration command mode.
- The local reflood timer for a specific interface configured using the mpls-reflood-timer method command in Interface configuration command mode
where the method is one of three models: immediate, pacing, or linear.
The linear model configures the interface to set up large reservations before smaller reservations. The linear model results in a more efficient packing of LSPs onto a link.
NOTE When IS-IS is the IGP, if one interface reflood timer expires (triggering a reflood), all interfaces are reflooded.
In order to use the linear model, you must configure at least two reservation_amounts and their associated times. You must configure the reservation amounts in descending order and their associated times in ascending order.
Use the mpls-reflood-timer linear command to configure the Avici router to advertise LSPs in descending order of percentage of reserved bandwidth.
Use the no mpls-reflood-timer command to configure the Avici router to advertise LSPs using the factory default values.
Factory Default: If no value is configured, the factory defaults are used.
Command Mode: Configuration.
Example 1: In the following example, the mpls-reflood-timer linear configures the Avici router to reflood link information when a change to available bandwidth occurs. LSPs are reflooded in the following order:
- LSPs that reserve 90% of the available bandwidth are set up first using a 3 second delay
- LSPs that reserve 50% of the available bandwidth are set up second using a 5 second delay
- LSPs that reserve 5% of the available bandwidth are set up last on this interface, using a 10 second delay
- Timers for all LSP set-ups are "jittered" by 20% to prevent the simultaneous setup of multiple LSPs.
router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
router(config)#mpls-reflood-timer linear 90% 3s 50% 5s 5% 10s jitter 20%
router(config)#end
router#show interface pos 1/1/1
POS 1/1/1 is up, line protocol is up
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Reflood timers: linear
90% 3000ms 50% 5000ms 5% 10000ms jitter 20%
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Example 2: In the following example, the no mpls-reflood-timer configures the Avici router to reflood link information using the factory defaults:
router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
router(config)#no mpls-reflood-timer
router(config)#end
router#show interface pos 1/1/1
POS 1/1/1 is up, line protocol is up
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Using factory default reflood timers
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Related Commands: mpls-reflood-timer immediate (Configuration)
mpls-reflood-timer pacing (Configuration)
mpls-te-reflood-timer immediate (Interface configuration)
mpls-te-reflood-timer linear (Interface configuration)
mpls-te-reflood-timer pacing (Interface configuration)
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Copyright © 2004
Avici Systems Inc.
Avici® and TSR®
is a registered trademark of Avici Systems Inc.
IPriori™, Composite Links™, SSR™, QSR, and NSR® are
trademarks of Avici Systems Inc.
Source
File Name: TE%20Commands.fm
HTML File Name: TE%20Commands44.html
Last Updated: 12/19/04 at 14:56:07