3Com 3CRWDR100U-72 User Guide - Page 55

Encapsulation, DHCP Client, Apply, there is a fixed timing relationship between samples. VBR NRT is

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Internet Settings 53 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 that you want from the QoS Class drop-down menu. ■ 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". ■ VBR (variable bit rate): QoS class defined by the ATM Forum for ATM networks. VBR is subdivided into a real time (RT) class and non-real time (NRT) class. VBR (RT) is used for connections in which there is a fixed timing relationship between samples. VBR (NRT) is 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. 6 Enter the PCR/SCR/MBS values. 7 If your ISP uses DHCP to automatically assign IP addresses, check the DHCP Client box. 8 Click Apply. Dynamic/Fixed IP in 1483 Bridge Mode (For Multiple PCs) Your ISP uses fixed/dynamic IP to provide the Internet connection. To configure this function correctly, you should obtain the information on this page from your ISP.

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Internet Settings
53
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 that you want from the QoS Class
drop-down menu.
■
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".
■
VBR (variable bit rate): QoS class defined by the ATM Forum for
ATM networks. VBR is subdivided into a real time (RT) class and
non-real time (NRT) class. VBR (RT) is used for connections in which
there is a fixed timing relationship between samples. VBR (NRT) is
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.
6
Enter the PCR/SCR/MBS values.
7
If your ISP uses DHCP to automatically assign IP addresses, check the
DHCP Client
box.
8
Click
Apply
.
Dynamic/Fixed IP in 1483 Bridge Mode (For Multiple PCs)
Your ISP uses fixed/dynamic IP to provide the Internet connection. To
configure this function correctly, you should obtain the information on
this page from your ISP.