4.6.2 RTP Settings
4.6.2 RTP Settings
TOS_RTP_[1–8]
Parameter Name Example
Value Format
Description
172
Administrator Guide
TOS_RTP_1, TOS_RTP_2, ..., TOS_RTP_8
Integer
Specifies the value to be stored in the ToS (Type of Service) field in the
IP header of RTP packets as a DSCP for DiffServ.
Note
•
The structures of the ToS/DS field in an IP header are shown
below.
ToS field
0
1
Precedence
3 bits
DS field
0
1
The ToS field consists of a 3-bit precedence, a 4-bit type of
service, and a 1-bit unused field.
The DS filed consists of a 6-bit DSCP and a 2-bit unused field.
2
3
4
Type of Service
4 bits
2
3
4
DSCP
6 bits
Document Version
5
6
7
Currently
unused
1 bit
5
6
7
Currently
unused
2 bits
2010-08