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3.7. DSCP Configure
Please refer to chapter 4.16 [tos] command
Set Signal or RTP Packet DSCP value:
Assured Forwarding (AF) PHB: Select Delay priority and Drop Precedence
Expedited Forwarding (EF) PHB: Select TOS value as EF
Default: Select TOS value as 0
User Assign Special DSCP Code: User can set other unspecified value here.
TOS/DiffServ (DS) priority function can discriminate the Differentiated Service Code Point
(DSCP) of the DS field in the IP packet header, and map each Code Point to a
corresponding egress traffic priority. As per the definition in RFC2474, the DS field is
Type-of-Service (TOS) octet in IPv4. The recommended DiffServ Code Point is defined in
RFC2597 to classify the traffic into different service classes. The mapping of Code Point
value of DS-field to egress traffic priorities is shown as follows.
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