Atm Vc Settings - D-Link DSL-380T User Manual

SCR
CDVT
MBS

ATM VC Settings

ATM VC settings can be configured for all connection types in the WAN Settings windows of the Home directory.
The table below describes the ATM VC settings used to configure a PPPoE or PPPoA connection for an ADSL account.
ATM VC Parameters
PVC
VPI
VCI
Virtual Circuit
DSL-380T ADSL Modem User Guide
Sustainable Cell Rate – The SCR is defined for the VBR service category.
This is the rate that can be sustained for "bursty", on-off traffic sources. It
is a function of Maximum Burst Size (MBS) and the time interval (between
cells).
Cell Delay Variation Tolerance – CDVT is a measure of the cell clumping
phenomenon by which cells are delayed in the network and are
clumped together and arrive at a system at a faster rate than negotiated.
Increasing the CDVT creates greater bucket depth.
Maximum Burst Size – The MBS is the maximum number of bytes that can
be sent continuously from the source to the destination dropping any
packets. Some ATM providers set the MBS and CDVT very low and adjust
up if problems occur.
ATM VC Settings in WAN Settings window
Description
The Modem supports a single connection only.
The Virtual Path Identifier is used with the VCI to define a dedicated circuit
on the ATM network portion of the connection to the Internet and WAN.
Most users will not need to change this setting.
The Virtual Channel Identifier is used with the VPI to define a dedicated
circuit on the ATM network portion of the connection to the Internet and
WAN. Most users will not need to change this setting.
Enabled
By default Pvc0 is
26
.