Eicon Networks DIVA T/A ISDN Modem - Manual (Page 10)

What is ISDN?
DIVA T/A ISDN Modem Reference Guide
◆ Page 10
What is BACP/BOD?
DIVA T/A supports the Bandwidth Allocation Control Protocol (BACP) and Bandwidth on
Demand (BOD). BACP/BOD refers to the ability of a system to allocate and remove links in a
multilink connection in order to lower or increase its bandwidth.
BACP/BOD monitors the flow of traffic across your ISDN connection. When the traffic on the
first B-channel reaches a threshold level for a defined period of time (either because of
deteriorating line conditions or increased traffic), the second B-channel is automatically
added. The second B-channel is kept active as long as traffic remains above the threshold
level. When the traffic drops below the threshold level, the second B-channel is dropped.
When used in conjunction with AO/DI, the D channel flow of data is evaluated and compared
to the threshold in order to add or remove the first B channel.
Since BACP/BOD automatically adds and drops the second B-channel in response to traffic
peaks and declines, the process is completely transparent.
BACP/BOD is an excellent way to reduce communications charges in situations where your
demand for ISDN bandwidth fluctuates.