Avaya P580 - Manual (Page 647)

Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, v5.3.1 -1
21 80-Series QoS
Overview
Quality of Service (QoS) is a set of tools that make it possible for
you to manage traffic across a switch or a network. These tools
protect specific traffic from the effects of network congestion. You
can enable these features for a module or individual ports on a
module to control the flow of traffic across your network. This
control makes it possible for you to guarantee that delay-sensitive
traffic such as voice over IP (VoIP) receives the priority it requires,
while also ensuring that the switch services other low priority data.
The QoS features are supported only on 80-series modules. Fifty-
series modules do not support these features.
This chapter contains the following sections:
■
“ Why implement QoS?” on page 2
■
“ How Does QoS Work?” on page 3
■
“ Classification of Traffic” on page 7
■
“ Ingress Policing” on page 31
■
“ Queue-Servicing Algorithms” on page 35
■
“ QoS Statistics” on page 47
* Note: In this release, you can configure the QoS features only
by using the CLI or Avaya Policy Manager Version 2.2.
These features are not available in the Web Agent or
SNMP.