Billion BiPAC 8200AXL-1200, Руководство пользователя

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ATM Settings
This page is used to configure the ATM parameters. Here you may change the setting for QoS, PCR,CDVT, SCR
and MBS.
The ATM QoS types include CBR (Constant Bit Rate), VBR (Variable Bit Rate) and UBR (Unspecified Bit Rate).
These QoS types are all controlled by the parameters specified below, including PCR, SCR and MBS.
Select CBR to specify fixed (always-on) bandwidth for voice or data traffic. Select UBR for applications that are
non-time sensitive, such as e-mail. Select VBR for burst traffic and bandwidth sharing with other applications.
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.
CDVT: CDVT (Cell Delay Variation Tolerance), is often associated with PCR to indicate how much jitter is
allowed.
SCR: The Sustain Cell Rate (SCR) sets the average cell rate (long-term) that can be transmitted.
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