RADWIN 2000 User Manual Release 2.6.40 25-1
Chapter 25
Quality of Service
Availability
The Quality of Service (QoS) feature is available for links using RADWIN 2000 C radios. If you
already have this model, you can access the feature by carrying out a Software Upgrade to
the 2.6.40 release.
To use the facility you must be familiar with the use of VLAN (802.1p) or Diffserv.
QoS - Overview
QoS is a technique for prioritization of network traffic packets during congestion.
RADWIN 2000 C links support two classification criteria, VLAN based or Diffserv based. You
may chose 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 25-1.
Table 25-1: Default priorities an d allocation by VLAN ID and Diffserv
Quality queue
Priority
REDAT
%
Diffserv VLAN
Real time 48-63 6-7 15
Near real time (responsive
applications)
32-47 4-5 20
Controlled load 16-31 2-3 25
Best effort 0-15 0-1 40
Note
For REDAT (Remaining Ethernet Data - Ethernet throughput) measurement
- see Throughput Checking. REDAT measures remaining Ethernet
throughput after reduction of bandwidth used by TDM channels. Use the
Link Budget Calculator to see how much remaining bandwidth is available
for Ethernet.
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