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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. 

1.  High priority with DS-field. 

           

(1) Expected Forwarding (EF)    101110      ====>    46 (Decimal System) 

(2) Assured Forwarding    (AF)    001010    ====>    10 (Decimal System) 

         

                                                          010010    ====>    18 (Decimal System) 

 

 

                                                          011010    ====>    26 (Decimal System) 

                            100010    ====>    34 (Decimal System) 

2.  Low Priority with DS-field:     

Assured Forwarding    (AF)  

001100    ====>    12 (Decimal System) 

010100    ====>    20 (Decimal System) 

011100    ====>    28 (Decimal System) 

100100    ====>    36 (Decimal System) 

   

 

 

001110    ====>    14 (Decimal System) 

   

 

 

010110    ====>    22 (Decimal System) 

   

 

 

011110    ====>    30 (Decimal System) 

   

 

 

100110    ====>    38 (Decimal System) 

   

 

 

000000    ====>    0    (Decimal System) 

 

1.  -print : display all current configurations. 

2. 

–rtptype: set DSCP value of signaling packets from 0 to 63 

3. 

–siptype: set DSCP value of RTP packets from 0 to 63 

 

 

? 

Note: 

1.  This  command  won

’t  be  functional  until  network  environment  can  be 

capable with DSCP function. 

2.  tos -rtptype 14 -sigtype 10 is top priority of package.