Technical information

Watson-SHDSL-Router-GUI-Manual.doc
Version 2.3-03
Watson SHDSL Router
Web-based Management Manual
Revision: 2012-02-29
8-47
 TCP Serialization You can enable TCP Serialization in its drop-down menu,
either for active voice calls only or for all traffic. The screen will refresh, adding
a 'Maximum Delay' field (see Figure 8-47). This function allows you to define
the maximal allowed transmission time frame (in milliseconds) of a single pack-
et. Any packet that requires a longer time to be transmitted, will be fragmented
to smaller sections. This avoids transmission of large, bursty packets that may
cause delay or jitter for real-time traffic such as VoIP. If you insert a delay value
in milliseconds, the delay in number of bytes will be automatically updated on
refresh.
Figure 8-47: TCP Serialization – Maximum Delay
Queue Policy Tx traffic queueing can be based on a shaping class (see the
following explanations) or on the pre-defined priority levels (refer to Section 8.3.3).
Note that when it is based on a shaping class, the class's bandwidth requirements
will be met regardless of the priority, and only excess bandwidth will be given to
traffic with a higher priority. However, when unlimited bandwidth is selected for the
Tx traffic, the queue policy can only be based on the pre-defined priority levels.
To define a Tx Traffic Shaping Class:
Click the 'New Entry' link in the 'Tx Traffic Shaping' section of the 'Edit Device Traf-
fic Shaping' screen. The 'Add Shaping Class' screen appears.
Figure 8-48: Add Shaping Class
1. Name the new class and click 'OK' to save the settings, e.g. Class A.