Cisco Systems A9014CFD Configuring Congestion Management, Configuring Low Latency Queueing LLQ

Chapter 24 Configuring QoS

Configuring Quality of Service (QoS)

policy-map cos-6 class cos-6

police rate percent 5 conform-action transmit exceed-action drop

set mpls experimental imposition 4 interface GigabitEthernet0/3

no ip address load-interval 30 negotiation auto

service instance 22 ethernet encapsulation dot1q 22

rewrite ingress tag pop 1 symmetric service-policy input cos-6

xconnect 2.2.2.2 22 encapsulation mpls

Configuring Congestion Management

The following sections describe how to configure congestion management on the Cisco ASR 901.

•Configuring Low Latency Queueing (LLQ)

•Configuring Multiple Priority Queueing

•Configuring Class-Based Weighted Fair Queuing (CBFQ)

•Weighted Random Early Detection (WRED)

Configuring Low Latency Queueing (LLQ)

Low latency queuing allows you to define a percentage of bandwidth to allocate to an interface or PVC as a percentage. You can define a percentage for priority or nonpriority traffic classes.

Complete the following steps to configure LLQ.

Step 1 Enter enable mode.

Router> enable

Step 2 Enter the password.

Password: password

When the prompt changes to Router, you have entered enable mode.

Step 3 Enter global configuration mode.

Router# configure terminal

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

Step 4 Use the policy-mapcommand to define a policy map.

Router(config)# policy-map policy1

Step 5 Use the class command to reference the class map that defines the traffic to which the policy map applies.

Router(config-pmap)# class class1

Router(config-pmap-c)#

	Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
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