User's Manual

Internet Settings 59
used for connections in which there is no fixed timing relationship
between samples, but that still need a guaranteed QoS. Compare
with ABR, CBR, and UBR.
■ UBR (unspecified bit rate): the UBR service class is intended for
delay-tolerant or non-real-time applications, for example, those
which do not require tightly constrained delay and delay variation,
such as traditional computer communications applications. The
UBR service may be considered as "best effort service".
12 Enter the PCR/SCR/MBS values.
13 Click Apply.
Bridge Mode
If the ISP limits some specific computers to access Internet, that means
only the traffic to/from these computers will be forwarded and the other
will be filtered. In this case, bridge modem is used to connect to the ISP.
The ISP will generally give one Internet account and limit only one
computer to access the Internet. Check with your ISP to determine if this
mode is used for your DSL connection. To configure the settings correctly,
you should obtain the information from your ISP.
Figure 47 Bridge Mode Screen
1 Select Bridge Mode from the Protocol drop-down menu.
2 Enter the VPI and VCI parameters in the VPI and VCI fields. You can click
Auto Search to automatically find out this information.
3 Select the encapsulation type (LLC or VC MUX) in the Encapsulation Type
field. This information should be provided to you by your ISP.