3Com WL-542 - Manual (Page 49)

Internet Settings 47
PPPoE
PPP over Ethernet, providing routing for multiple PCs. To configure this
page correctly, you should obtain the information on this page from your
ISP.
Figure 38 PPPoE Settings Screen
1 Select PPPoE from the Protocol drop-down menu.
2 Then enter the IP address and Subnet Mask information provided by your
ISP into the IP address and Subnet Mask fields.
3 Enter the VPI and VCI parameters provided to you by your ISP in the VPI
and VCI fields.
4 Select the encapsulation type (LLC or VC MUX) in the Encapsulation field.
This information will have been provided to you by your ISP.
5 Select the type of Quality of Service (CBR, UBR or VBR) in the QoS field.
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CBR (constant bit rate): the CBR service class is intended for
real-time applications, for example, those requiring tightly
constrained delay and delay variation, such as voice and video
applications. The consistent availability of a fixed quantity of
bandwidth is considered appropriate for CBR service.
■
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".