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Chapter 3: Terminal Menu Operation and Structure
78 Express XL/XLT User Manual 61200070L1-1
Bandwidth/Upper Threshold
Write security: 3; Read security: 5
This is the percentage of bandwidth that must be at least present on one B-
channel before a second B-channel is added. The range is 0 to 100 and is in per-
centages. The default is 80%, which is equivalent to 51.2 kbps. See the section
Bandwidth/Samples (below) for more information on how the bandwidth rate is
calculated.
Bandwidth/Lower Threshold
Write security: 3; Read security: 5
This is the percentage of maximum bandwidth the bit rate must go below on
two B-channels before one is dropped. The range is 0 to 100 and is in percent-
ages. The default is 30%, which is equivalent to 38.4 kbps. See the section
Bandwidth/Samples (below) for more information on how the bandwidth rate is
calculated.
Bandwidth/Min Channels
Write security: 3; Read security: 5
This represents the minimum number of B-channels that must be up for this
Connection List profile. This value ranges from 0 to 2. The default is 0.
Bandwidth/Max Channels
Write security: 3; Read security: 5
This represents the maximum number of B-channels this Connection List pro-
file can have. The allowed values are 1 and 2. The default is 2. A value of 1
means that no extra bandwidth can be obtained for this connection.
Bandwidth/Samples
The parameters under this menu control the rate at which the Express XL/XLT
samples the bandwidth on the B-channel(s).
Samples/Sample Rate
Write security: 3; Read security: 5
This is the time between samples used for calculating data rates on the ISDN
call. The value is in seconds and ranges from 1 to 255. The default is 5 seconds.
Samples/Samples
Write security: 3; Read security: 5
This is the number of WAN data rate samples taken before a decision to
change bandwidth is performed. The range is 1 (def) to 255 samples.