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Utility number for longer than the specified Add Persist value. Similarly,
the second channel will be dropped if the traffic level falls below the low
Target Utility number for longer than the Subtract Persist value.
The Target Utility specifies the line utilization range at which you want
your IRT-1001 or IRT-1002 to add or subtract bandwidth. The range is
30 to 64 kbps (kilobits per second). The parameters are separated by a -
. For example, 30-60 means the add threshold is 60 kbps and subtract
threshold is 30 kbps. The router will perform bandwidth on demand only
if it initiates the call. Addition and subtraction are based on the value set
in the BOD Calculation field. If this field is set to Transmit or Receive,
then traffic in either direction will be calculated to determine if a link
should be added or dropped. Transmit will only use outgoing traffic to
make this determination, and Receive will only use incoming traffic to
make this determination.
If, after making the call to bring up a second channel, the second
channel does not succeed in joining the Multilink Protocol bundle
(because the remote device does not recognize the second call as
coming from the same device), the router will hang up the second
channel and continue with the first channel alone.
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IRT-1000 series User's Guide
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