Allied Telesis AT-S63 - Manual (Page 153)

AT-S63 Management Software Features Guide
Section II: Advanced Operations 153
Examples
The following examples demonstrate how to implement QoS in three
situations:
ˆ “Voice Applications,” next
ˆ “Video Applications” on page 155
ˆ “Critical Database” on page 157
Voice
Applications
Voice applications typically require a small but consistent bandwidth. They
are sensitive to latency (interpacket delay) and jitter (delivery delay). Voice
applications can be set up to have the highest priority.
This example creates two policies that ensure low latency for all traffic sent
by and destined to a voice application located on a node with the IP
address 149.44.44.44. The policies raise the priority level of the packets to
7, the highest level. Policy 6 is for traffic from the application that enter the
switch on port 1. Policy 11 is for traffic arriving on port 8 going to the
application. The components of the policies are shown in Figure 11.