QoS Policy Configuration Examples

QoS Policy Configuration Examples

QoS Policy Configuration Examples

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Contents

Introduction ··································································································································································· 1

 

General configuration restrictions and guidelines ····································································································· 1

 

Example: Implementing traffic policing ······················································································································ 1

 

Network requirements ······················································································································································ 1

Configuration procedure ·················································································································································· 2

 

 

Example: Providing preferential treatment for a specific traffic type ······································································· 9

 

Network requirements ······················································································································································ 9

Configuration procedure ··············································································································································· 10

 

 

Example: Implementing GTS ····································································································································· 17

 

Network requirements ··················································································································································· 17

Configuration procedure ··············································································································································· 17

 

 

Example: Implementing congestion management ··································································································· 24

 

Network requirements ··················································································································································· 24

Configuration procedure ··············································································································································· 25

 

 

i

Introduction

This document provides examples for configuring QoS policies.

QoS Manager provides different QoS for different scenarios, for example, guaranteeing minimum bandwidth, and reducing packet loss, delay, and jitter. It also provides predefined service definitions that allow users to quickly specify actions for specific services.

QoS Manager can manage QoS-capable devices from different vendors.

General configuration restrictions and guidelines

When you configure QoS policies, follow these restrictions and guidelines:

When a class deployed on the current device is referenced by a second QoS policy, that second

QoS policy cannot be deployed in overwrite mode on the device.

You can check whether a QoS policy has been deployed successfully by selecting Service > QoS

Manager > Deploy Task.

Example: Implementing traffic policing

Network requirements

As shown in

Figure 1

, three departments of a company are connected to the Internet.

Configure QoS policies to limit the traffic from each department to the Internet to 2 Mbps.

Figure 1 Network diagram

1

Configuration procedure

1. Configure ACLs, and deploy them to devices, as shown in

Figure 2

.

For more information, see the ACL configuration guide of the device.

Figure 2 Deploying ACLs

2. Define a traffic class: a. Click the Service tab. b. From the navigation tree, select QoS Manager > QoS Resource. c. Click the Classifier link.

The Classifier page appears, as shown in

Figure 3

.

Figure 3 Classifier page d. Click Add to add a class, as shown in

Figure 4 .

2

Figure 4 Adding a classifier e. Click Add on the Add QoS Classifier page to configure a match criterion for the class, and click

OK, as shown in

Figure 5 .

3

Figure 5 Configuring a match criterion

3. Configure a QoS policy: a. Click the Service tab. b. From the navigation tree, select QoS Manager > QoS Device.

The QoS Device page appears, as shown in

Figure 6 .

Figure 6 QoS Device page

4

c. In the device list, click the Operation icon for the target device, and select QoS

Configuration Info from the menu that is displayed.

The QoS Configuration Info page appears, as shown in

Figure 7

.

Figure 7 QoS Configuration Info page d. Click Add on the QoS Configuration Info page.

The Setting Deploy Apply Object page appears, as shown in

Figure 8

. e. Select an interface by clicking the Number of interfaces (inbound direction) icon in the

Apply Policy to Interface area.

Figure 8 Setting Deploy Apply Object page f. Click Next to set a QoS policy, as shown in

Figure 9 .

5

Figure 9 Setting a QoS policy g. Click Add to select the created class, and click OK, as shown in

Figure 10

.

6

Figure 10 Selecting the created class h. Click the Behavior icon for the selected class to configure the behavior, and click OK, as

shown in Figure 11

.

7

Figure 11 Configuring a behavior i. Click Next on the Setting QoS Policy page to configure basic information, as shown in

Figure

12 .

The Basic Information page allows you to customize policy deployment. In this example, the defaults are used.

Figure 12 Basic Information page j. Click Next on the Basic Information page, and click Finish to complete QoS policy

configuration, as shown in Figure 13

.

8

Figure 13 Summary page

After configuring a QoS policy, you can view which policies are applied to which interfaces on the

QoS Configuration Info page, as shown in

Figure 14

.

Figure 14 QoS Configuration Info page

Example: Providing preferential treatment for a specific traffic type

Network requirements

As shown in

Figure 15

, configure a QoS policy on the router to meet the following requirements:

Preferentially forward the packets with destination port number 80 within the rate of 512 kbps.

Mark these packets with DSCP value 2 and 802.1p priority 5.

Set the CBS to 16000 bytes and EBS to 24000 bytes for these packets.

9

Figure 15 Network diagram

Configuration procedure

1. Define a traffic class to match packets with destination port number 80: a. Click the Service tab. b. From the navigation tree, select QoS Manager > QoS Resource. c.

Click the Classifier link.

The Classifier page appears, as shown in

Figure 16

.

Figure 16 Classifier page d. Click Add to add a class, as shown in

Figure 17

.

10

Figure 17 Adding a class e. Click Add on the Add QoS Classifier page to configure a match criterion for the class, and click

OK, as shown in

Figure 18

.

11

Figure 18 Configuring a match criterion

2. Configure a QoS policy: a. Click the Service tab. b. From the navigation tree, select QoS Manager > QoS Device.

The QoS Device page appears, as shown in

Figure 19

.

12

Figure 19 QoS Device page c. In the device list, click the Operation icon for the target device, and select QoS

Configuration Info from the menu that is displayed.

The QoS Configuration Info page appears, as shown in

Figure 20

.

Figure 20 QoS Configuration Info page d. Click Add on the QoS Configuration Info page.

The Setting Deploy Apply Object page appears, as shown in

Figure 21

. e. Select an interface by clicking the Number of interfaces (inbound direction) icon in the

Apply Policy to Interface area.

13

Figure 21 Setting Deploy Apply Object page f. Click Next to set a QoS policy, as shown in

Figure 22

.

Figure 22 Setting a QoS policy g. Click Add to select the created class, and click OK, as shown in

Figure 23

.

14

Figure 23 Selecting the created class h. Click the Behavior icon for the selected class to configure the behavior, as shown in

Figure

24 .

15

Figure 24 Configuring a behavior i.

Click Config for CAR to configure policing parameters, and click OK, as shown in Figure 25

.

Figure 25 Configure policing parameters j. Click Config for Remark to configure remarking parameters, and click OK, as shown in

Figure

26 .

16

Figure 26 Configuring remarking parameters

For other settings, see " Example: Implementing traffic policing

."

Example: Implementing GTS

Network requirements

As shown in Figure 27

, configure a QoS policy on the edge router to limit the rate of traffic to the ISP's router.

Figure 27 Network diagram

Configuration procedure

1. Configure an ACL to match packets with source IP address 10.1.1.0, and deploy the ACL to the

device, as shown in Figure 28

.

17

Figure 28 Configuring an ACL

2. Define a traffic class: a. Click the Service tab. b. From the navigation tree, select QoS Manager > QoS Resource. c. Click the Classifier link.

The Classifier page appears, as shown in

Figure 29

.

Figure 29 Classifier page d. Click Add to add a class, as shown in

Figure 30

.

18

Figure 30 Adding a class e. Click Add on the Add QoS Classifier page to configure a match criterion for the class, and click

OK, as shown in

Figure 31

.

19

Figure 31 Configuring a match criterion

3. Configure a QoS policy: a.

Click the Service tab. b. From the navigation tree, select QoS Manager > QoS Device.

The QoS Device page appears, as shown in

Figure 32

.

20

Figure 32 QoS Device page c. In the device list, click the Operation icon for the target device, and select QoS

Configuration Info from the menu that is displayed.

The QoS Configuration Info page appears, as shown in

Figure 33

.

Figure 33 QoS Configuration Info page d. Click Add on the QoS Configuration Info page.

The Setting Deploy Apply Object page appears, as shown in

Figure 34

. e. Select an interface by clicking the Number of interfaces (outbound direction) icon in the

Apply Policy to Interface area.

21

Figure 34 Setting Deploy Apply Object page f. Click Next to set a QoS policy, as shown in

Figure 35

.

Figure 35 Setting a QoS policy g. Click Add to select the created class, and click OK, as shown in

Figure 36

.

22

Figure 36 Selecting the created class h. Click the Behavior icon for the selected class to configure the behavior, and click OK, as

shown in Figure 37

.

23

Figure 37 Configuring a behavior

For other settings, see " Example: Implementing traffic policing

."

Example: Implementing congestion management

Network requirements

As shown in

Figure 38

, configure a QoS policy to guarantee the delay and bandwidth for voice and video services when congestion occurs.

24

Figure 38 Network diagram

Configuration procedure

1. Click the Service tab.

2. From the navigation tree, select QoS Manager > QoS Device.

The QoS Device page appears, as shown in

Figure 39

.

Figure 39 QoS Device page

3. In the device list, click the Operation icon for the target device, and select QoS Configuration

Info from the menu that is displayed.

The QoS Configuration Info page appears, as shown in Figure 40 .

25

Figure 40 QoS Configuration Info page

4. Click Add on the QoS Configuration Info page.

The Setting Deploy Apply Object page appears, as shown in Figure 41 .

5. Select an interface by clicking the Number of interfaces (outbound direction) icon in the Apply

Policy to Interface area.

Figure 41 Setting Deploy Apply Object page

6. Click Next to set a QoS policy, as shown in

Figure 42

.

26

Figure 42 Setting a QoS policy

7.

Click Add to select the predefined voice and video classes, and click OK, as shown in Figure 43 .

27

Figure 43 Selecting predefined voice and video classes

8. Click the Behavior icon for the VideoTraffic class to configure the behavior, as shown in

Figure

44

.

28

Figure 44 Configuring a behavior

9. Click Config for Queue and Wred to configure AF parameters, and move the scroll bar to click OK, as shown in

Figure 45

.

Figure 45 Configuring AF parameters

29

10. Click Config for Queue and Wred to configure EF parameters, and click OK, as shown in

Figure

46

.

Figure 46 Configuring EF parameters

For other settings, see " Example: Implementing traffic policing

."

30

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