Atlantis Land 111U - Manual (Page 47)

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The following table describes the labels in this screen:
Field Description
ATM VC
Virtual Circuit
ID
VPI (Virtual Path Identifier) and VCI (Virtual Channel Identifier)
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.
ATM QoS
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
Cell rate configuration often helps eliminate traffic congestion that
slows transmission of real time data such as audio and video
connections.
Peak Cell Rate
(PCR)
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.
Sustain Cell
Rate (SCR)
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)
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.
ENCAPSULATION
Encapsulation
Select the method of encapsulation used by your ISP from the
drop-down list box.
PPPoA/PPPoE