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Figure 84: qos video application example – Allied Telesis AT-S62 User Manual

Page 264

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Chapter 16: Quality of Service

Section II: Advanced Operations

264

Video Applications

Video applications typically require a larger bandwidth than voice
applications. Video applications can be set up to have a high priority and
buffering, depending on the application.

This example creates policies with low latency and jitter for video
streams (for example, net conference calls). The policies in Figure 84
assign the packets a priority level of 4 and limit the bandwidth to 5
Mbps. The node containing the application has the IP address
149.44.44.44. Policy 17 is assigned to port 1, where the application is
located, and Policy 32 is assigned to port 8 where packets destined to
the application enter the switch.

Figure 84 QoS Video Application Example

Create Classifier

01 - Classifier ID: ..... 16
02 - Desciption ......... Video flow
.
.
12 - Src IP Addr ....... 149.44.44.44
13 - Src IP Mask .......

Create Flow Group

1 - Flow Group ID ............. 41
2 - Description ................... Video
3 - DSCP Value .................
4 - Priority ......................... 4
5 - Remark Priority ........... No
6 - Classifier List .............. 16

Create Traffic Class

1 - Traffic Class ID: ........ 19
2 - Desciption ................ Video
.
.
6 - Max Bandwidth ........ 5
.
.
A - Flow Group List ....... 41

Create Policy

1 - Policy ID: ................ 17
2 - Desciption .............. Video flow
.
.
5 - Traffic Class List ....... 19
6 - Ingress Port List ....... 1

Create Classifier

01 - Classifier ID: ..... 42
02 - Desciption ......... Video flow
.
.
12 - Dst IP Addr ........ 149.44.44.44
13 - Dst IP Mask .......

Create Flow Group

1 - Flow Group ID ............. 36
2 - Description ................... Video
3 - DSCP Value .................
4 - Priority ......................... 4
5 - Remark Priority ........... No
6 - Classifier List .............. 42

Create Traffic Class

1 - Traffic Class ID: ........ 21
2 - Desciption ................ Video
.
.
6 - Max Bandwidth ........ 5
.
.
A - Flow Group List ....... 36

Create Policy

1 - Policy ID: ................ 32
2 - Desciption .............. Video flow
.
.
5 - Traffic Class List ....... 21
6 - Ingress Port List ....... 8

Policy 17

Policy 32