Qos Settings; Technical Reference; Dscp And Per-Hop Behavior - ZyXEL Communications max318m2w User Manual

9.2.2 QoS Settings

Click VoIP > General > QoS to set up Type of Service (ToS) and Differentiated
Services (Diffserv) settings for voice traffic transmission through the WiMAX
Device.
Figure 64 VoIP > General > QoS
The following table describes the labels in this screen.
Table 50 VoIP > General > QoS
LABEL
SIP ToS/
DiffServ
RTP ToS/
DiffServ

9.3 Technical Reference

The following section contains additional technical information about the WiMAX
Device features described in this chapter.

9.3.1 DSCP and Per-Hop Behavior

DiffServ defines a new DS (Differentiated Services) field to replace the Type of
Service (TOS) field in the IP header. The DS field contains a 2-bit unused field and
a 6-bit DSCP field which can define up to 64 service levels. The following figure
illustrates the DS field.
Figure 65 DiffServ: Differentiated Service Field
DSCP
(6-bit)
MAX318M2W User's Guide
DESCRIPTION
Enter the first 6 bits of the ToS field in hexadecimal (in a format of
0x00), which you want to mark on all outgoing SIP packets flowing
through the WiMAX Device. The WiMAX Device automatically converts
this number to another in order to compatible with DiffServ-enabled
network. For example, if you enter 0x2E, it is 101110 in binary for ToS
service. The WiMAX Device converts it to 10111000 in binary for
DiffServ-enabled network.
Select the ToS value in hexadecimal (in a format of 0x00) to mark all
outgoing RTP packets flowing through the WiMAX Device.
Unused
(2-bit)
Chapter 9 The VoIP General Screens
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