Chapter 42 Configuring PFC QoS

Configuring PFC QoS

This example shows how to attach the ingress CoS mutation map named testmap to Gigabit Ethernet port 1/1:

Router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z. Router(config)# interface gigabitethernet 1/1 Router(config-if)# mls qos cos-mutation testmap Router(config-if)# end

Router# show mls qos maps cos-mutationCOS mutation map testmap

cos-in : 0 1 2 3 4 5 6 7

------------------------------------

cos-out : 4 5 6 7 0 1 2 3

testmap is attached on the following interfaces Gi1/1

Router#

Configuring DSCP Value Maps

These sections describe how DSCP values are mapped to other values:

Mapping Received CoS Values to Internal DSCP Values, page 42-86

Mapping Received IP Precedence Values to Internal DSCP Values, page 42-87

Configuring DSCP Markdown Values, page 42-87

Mapping Internal DSCP Values to Egress CoS Values, page 42-89

Mapping Received CoS Values to Internal DSCP Values

To configure the mapping of received CoS values to the DSCP value that PFC QoS uses internally on the PFC, perform this task:

 

Command

Purpose

Step 1

 

 

Router(config)# mls qos map cos-dscp dscp1 dscp2

Configures the received CoS to internal DSCP map. You

 

dscp3 dscp4 dscp5 dscp6 dscp7 dscp8

must enter 8 DSCP values to which PFC QoS maps CoS

 

 

values 0 through 7.

 

Router(config)# no mls qos map cos-dscp

Reverts to the default map.

Step 2

 

 

Router(config)# end

Exits configuration mode.

Step 3

 

 

Router# show mls qos maps

Verifies the configuration.

 

 

 

This example shows how to configure the received CoS to internal DSCP map:

Router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

Router(config)# mls qos map cos-dscp 0 1 2 3 4 5 6 7

Router(config)# end

Router#

 

Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX

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OL-4266-08

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Cisco Systems OL-4266-08 manual Configuring Dscp Value Maps, Mapping Received CoS Values to Internal Dscp Values, 42-86

OL-4266-08 specifications

Cisco Systems OL-4266-08 is a robust and versatile certification that focuses on the essentials of implementing and troubleshooting Cisco collaborations solutions. As enterprises increasingly rely on unified communications, having professionals who are knowledgeable in the latest Cisco technologies becomes a necessity. This certification is part of the Cisco Certified Network Associate (CCNA) program, which serves as a foundational stepping stone for individuals aspiring to build a career in networking and collaboration technologies.

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