User Manual

C HAPTER 5 | WAN Configuration
ATM Settings
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nrt-VBR (non-realtime Variable Bitrate): Configures a PVC at a
non-realtime variable bit rate. This option may be used for
applications not sensitive to changes in available bandwidth, such
as data.
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rt-VBR (realtime Variable Bitrate): Configures a PVC at a real-time
variable bit rate. This option may be used for applications that have
a lot of variance in required bandwidth, such as voice.
◆ PCR (Peak Cell Rate) — Configures the maximum allowable rate at
which cells can be transported along a connection in the ATM network.
The PCR is the determining factor in how often cells are sent in relation
to time in an effort to minimize jitter.
◆ CDVT (Cell Delay Variation Tolerance) — Configures the maximum
amount of jitter permissable.
◆ SCR (Sustainable Cell Rate) — Configures the average allowable, long-
term cell transfer rate on a specific connection.
◆ MBS (Maximum Burst Size) — Configures the maximum allowable
burst size of cells that can be transmitted contiguously on a particular
connection.
◆ Apply Changes — Applies the changes made to the connection.
◆ Undo — Undoes any altered parameters made if the Apply Changes
button has not been clicked.