RADWIN2000CPlusUserManual Release3.5.70 16‐1
Chapter16:
QualityofService
Prerequisites
TousethefacilityyoumustbefamiliarwiththeuseofVLAN(802.1p)orDiffserv.
Terminology
TheQoSimplementationforRADWIN2000CPlusisbasedonthatofRADWIN5000sothe
latterODUterminologyisretained.Recall,thatHBSalwaysmeanstheMasterODUandHSU
alwaysmeanstheSlaveODU.
QoS‐Overview
QoSisatechniqueforprioritizationofnetworktrafficpacketsduringcongestion.
RADWIN2000CPluslinkssupporttwoclassificationcriteria,VLANbasedorDiffservbased.
Youmaychoosewhichofthemtouse.
Basedupontheclassificationcriterionchosen,receivedpacketswillbemappedintooneof
fourqualitygroups:Real
time,Nearrealtime,ControlledloadandBesteffort.
Table16‐1:DefaultprioritiesandallocationbyVLANIDandDiffserv
Qualityqueue
Priority
Diffserv VLAN
Realtime
48‐63 6‐7
Nearrealtime(responsive
applications)
32‐47 4‐5
Controlledload
16‐31 2‐3
Besteffort
0‐15 0‐1