Atlantis Land 111U Manuale Utente

 

 

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The following table describes the labels in this screen: 

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

define a virtual circuit. 

Activated or Deactivated

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

you. This field may already be configured. 

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 

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 configuration often helps eliminate traffic congestion that 

slows transmission of real time data such as audio and video 

connections. 

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 

the sender can send cells. Type the PCR here. 

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

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

the PCR. 

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 

65535. 

Select the method of encapsulation used by your ISP from the 

drop-down list box.