The following table describes the labels in this screen:

 

Field

Description

 

 

 

 

ATM VC

 

Virtual Circuit

VPI (Virtual Path Identifier) and VCI (Virtual Channel Identifier)

 

 

ID

define a virtual circuit.

 

 

Status

Activated or Deactivated

 

 

VPI

 

The valid range for the VPI is 0 to 255. Enter the VPI assigned to

 

 

 

you. This field may already be configured.

 

 

 

 

 

 

VCI

 

The valid range for the VCI is 32 to 65535. Enter the VCI assigned

 

 

 

to you. This field may already be configured.

 

 

 

 

 

 

 

 

Select CBR (Continuous Bit Rate) to specify fixed (always-on)

 

 

 

 

bandwidth for voice or data traffic. Select UBR (Unspecified Bit

 

 

ATM QoS

 

Rate) for applications that are non-time sensitive, such as e-mail.

 

 

 

Select VBR (Variable Bit Rate) for bursty traffic and bandwidth

 

 

 

 

 

 

 

 

sharing with other applications.

 

 

 

 

VBR is not available on all models.

 

 

Cell Rate

 

Cell rate configuration often helps eliminate traffic congestion that

 

 

 

slows transmission of real time data such as audio and video

 

 

 

 

connections.

 

 

Peak Cell Rate

 

Divide the DSL line rate (bps) by 424 (the size of an ATM cell) to

 

 

 

find the Peak Cell Rate (PCR). This is the maximum rate at which

 

 

(PCR)

 

 

 

 

the sender can send cells. Type the PCR here.

 

 

 

 

 

 

Sustain Cell

 

The Sustain Cell Rate (SCR) sets the average cell rate (long-term)

 

 

 

that can be transmitted. Type the SCR, which must be less than

 

 

Rate (SCR)

 

 

 

 

the PCR.

 

 

 

 

 

 

 

 

 

Maximum Burst

 

Maximum Burst Size (MBS) refers to the maximum number of cells

 

 

 

that can be sent at the peak rate. Type the MBS, which is less than

 

Size (MBS)

 

 

 

 

65535.

 

 

 

 

 

 

 

 

 

 

ENCAPSULATION

 

Encapsulation

 

Select the method of encapsulation used by your ISP from the

 

 

 

drop-down list box.

 

 

 

 

 

 

 

 

 

 

 

 

PPPoA/PPPoE

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