Publication no. 101557
Rev 14.1.1-2
Copyright 2006-2012 – STM Group, Inc.
3. ViC video is mapped to QoS group 3, ViC audio is mapped to QoS group 4 and ViC signaling is
mapped to QoS group 5.
The second alternative has the advantage that the audio and the audio-signaling are protected from
fluctuations in video traffic. The third alternative has the additional advantage of giving extra protection
to the ViC signaling. However, to use option two and three, the VSAT‘s QoS classification must be able
to distinguish between the video, audio, and signaling components of the ViC in order to separate them
into different QoS groups.
11.4 DSCP and DiffServ
The following DSCP values are recommended to use on equipment connected to the VSAT:
46 (EF; 101110) if VoIP is not in
use
47 (101111) otherwise
46 (EF; 101110) if VoIP is not in
use
47 (101111) otherwise
Unconditional packet dropping
Recommended mapping to support standardized DiffServ compliance:
Requires forwarding precedence
Requires forwarding precedence
Other, not specifically treated
Recommended mapping for support of the standardized AF PHB group, using AF class 3 as an example:
AF Class 3 low drop precedence
AF Class 3 medium drop
precedence
AF Class 3 high drop precedence
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