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Creating single-rate and twin-rate policers, Creating single-rate and twin-rate policers 3, Single-rate and twin-rate policer commands 3 – Allied Telesis AT-8100 Series User Manual

Page 1663

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AT-8100 Switch Command Line User’s Guide

1663

Creating Single-rate and Twin-rate Policers

A policer can be used to meter the traffic classified by a class map and, as
a result, non-conforming traffic is given a red bandwidth class:

There are two types of policers, single-rate and twin-rate. A single-rate
policer allows you to determine the following:

Committed Information Rate (CIR)

Committed burst size (CBS)

Excess Burst Size (EBS)

A twin-rate policer allows you to determine the CIR and CBS as well as
two additional values:

CIR

CBS

Peak Information Rate (PIR)

Peak Burst Size (PBS)

If traffic does not conform to the conditions set in the command, both the
single-rate and twin-rate policer can either drop or remark traffic. There are
two commands that allow you create policers, POLICE SINGLE-RATE
ACTION and POLICE TWIN-RATE ACTION. See Table 212.

For more information about these commands, see “POLICE SINGLE-
RATE ACTION” on page 1651 and “POLICE TWIN-RATE ACTION” on
page 1654.

Table 212. Single-rate and Twin-rate Policer Commands

To Do this Task

Use this Command

Sets a single-rate policer for a class-map.

police single-rate <

cir>

action

[drop-red|policed-dscp-transmit]

Sets a twin-rate policer for a class-map.

police twin-rate <

cir>

action

[drop-red|policed-dscp-transmit]