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Match ip-precedence – Allied Telesis AT-DC2552XS User Manual

Page 496

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Chapter 21: Quality of Service (QoS) Commands

496

Section V: Security and Traffic Control

MATCH IP-PRECEDENCE

Syntax

match ip-precedence

value

Parameter

value

Specifies the value of the Type of Service (TOS) priority (IP
precedence) field in the IP header. The range is 0 to 7.

Mode

Class Map Configuration mode

Description

Use this command to add a precedence value as a matching criterion to a
class map. When a precedence value has already been added to a class
map, this command replaces the previous value with the new value.

When a precedence value is assigned, the switch compares the specified
precedence value against the value of the TOS priority field in the IP
header.

To remove the precedence value as a matching criterion from a class
map, use the NO MATCH IP-PRECEDENCE command.

Confirmation Commands

“SHOW CLASS-MAP” on page 513

Examples

The following example creates a class map called, “cmap7,” to evaluate all
ingress IPv4 packets for a precedence value of 5:

awplus> enable
awplus# configure terminal
awplus(config)# class-map cmap7
awplus(config-cmap)# match ip-precedence 5

The following example removes the IP precedence value from class map
“cmap7”:

awplus> enable
awplus# configure terminal
awplus(config)# class-map cmap4
awplus(config-cmap)# no match ip-precedence