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Cisco IOS in a Nutshell, 2nd Edition by James Boney

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Name

shape — policy-map

Synopsis

shape {average | peak} cir [burst-committed burst-excess]
no shape {average | peak} cir [burst-committed burst-excess]

shape {average | peak} percent percent-value [burst-committed burst-excess]
no shape {average | peak} percent percent-value [burst-committed burst-excess]

Configures

traffic shaping

Default

None

Description

This command allows you to configure traffic shaping for a policy-map class. You can specify either the committed information rate (CIR) in bits per second or you can specify a percentage of the available bandwidth.

average

Specifies the average rate shaping.

peak

Specifies the peak rate shaping.

cir

Specifies the CIR in bits per second.

percent

Specifies the percentage of bandwidth to use. The value can be from 1 to 100.

burst-committed

Optional. Specifies the committed burst (bc) size in milliseconds. This value can be from 10 to 2,000.

burst-excess

Optional. Specifies the exceeded burst (be) size in milliseconds. This value can be from 10 to 2,000.

Example

This example configures traffic shaping using an average of the available bandwidth. We set the average rate to have a CIR of 50 percent, a committed burst (bc) of 400 milliseconds, and an exceeded burst (be) of 600 milliseconds.

policy-map map1
  class class1
    shape average percent 50 400 600

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