Radwin RADWIN 2000 D+, User Manual

Page: 168 / 229

RADWIN 2000 D+ User Manual Release 3.6.00 16 ‐ 1
Chapter 16: Quality of Service
16.1 Prerequisites
To use the facility you must be familiar with the use of VLAN (802.1p) or Diffserv.
16.2 QoS ‐ Overview
QoS is a technique for prioritization of network traffic packets during congestion.
RADWIN 2000 D+ links support two classification criteria, VLAN based or Diffserv based. You
may choose which of them to use.
Based upon the classification criterion chosen, received packets will be mapped into one of
four quality groups: Real time, Near real time, Controlled load and Best effort.
You may partition the total link capacity across the four Quality queues. The default weights
as percentages are shown in Table 16 ‐ 1 .
16.3 Setting up the Link for QoS
16.3.1 Preparing for QoS
Open Services Configuration and then click the QoS Configuration button.
Table 16 ‐ 1: Default priorities an d allocation by VLAN ID and Diffserv
Quality queue
Priority
Diffserv VLAN
Real time
48 ‐ 63 6 ‐ 7
Near real time (responsive
applications)
32 ‐ 47 4 ‐ 5
Controlled load
16 ‐ 31 2 ‐ 3
Best effort 0 ‐ 15 0 ‐ 1