Chapter 36: quality of service commands – Asante Technologies 40240/40480-10G User Manual

Page 626

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Command Function

class-map

Creates a class map for a type of traffic

match Defines

the

criteria

used to classify traffic

rename

Redefines the name of a class map

description

Specifies the description of a class map

policy-map

Creates a policy map for multiple interfaces

class

Defines a traffic classification for the policy to act on

rename

Redefines the name of a policy map

description

Specifies the description of a policy map

set

Classifies IP traffic by setting a CoS, DSCP, or IP-precedence

value in a packet

police

Defines an enforcer for classified traffic

service-policy

Applies a policy map defined by the policy-map command to

the input of a particular interface

show class-map

Displays the QoS class maps which define matching criteria

used for classifying traffic

show policy-map

Displays the QoS policy maps which define classification

criteria for incoming traffic, and may include policers for

bandwidth limitations

show policy-map interface Displays the configuration of a l classes configured for a l

service policies on the specified interface

Chapter 36: Quality of Service Commands

The commands described in this section are used to configure Differentiated
Services (DiffServ) classification criteria and service policies. You can classify traffic
based on access lists, IP Precedence or DSCP values, or VLANs. Using access lists
allows you select traffic based on Layer 2, Layer 3, or Layer 4 information contained
in each packet.

Table 36-1 Quality of Service Commands

Mode Page

GC 36-2

CM 36-3

CM 36-4

CM 36-4

GC 36-5

PM 36-5

PM 36-4

PM 36-4

PM-C 36-6

PM-C 36-7

IC 36-8

PE 36-9

PE 36-9

PE 36-10

To create a service policy for a specific category of ingress traffic, follow these steps:

1. Use

the

class-map command to designate a class name for a specific category

of traffic, and enter the Class Map configuration mode.

2. Use

the

match command to select a specific type of traffic based on an access

list, a DSCP or IP Precedence value, or a VLAN.

3. Use

the

policy-map command to designate a policy name for a specific

manner in which ingress traffic will be handled, and enter the Policy Map
configuration mode.

4. Use

the

class command to identify the class map, and enter Policy Map Class

configuration mode. A policy map can contain multiple class statements.

5. Use

the

set command to modify the QoS value for matching traffic class, and

use the policer command to monitor the average flow and burst rate, and drop

36-1

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