Eicon Networks DIVA T/A ISDN Modem manual What is BACP/BOD?

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What is ISDN?

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.

DIVA T/A ISDN Modem Reference Guide ◆ Page 10

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Contents Diva T/A Isdn Modem Reference Guide Eight Edition July 206-193-08 Contents What is ISDN? Diva T/A Isdn Modem Reference GuideWhat is ISDN? Isdn Communication Channels ChannelChannel Connecting to Isdn BRI and PRI Basic Rate AccessWhat is Multilink PPP? What is BACP/BOD? What is DBA? What is Always On / Dynamic Isdn AO/DI? What is Data Compression? Locating AT Commands Locating AT Commands AT Command Groups Alphabetical List of Supported AT Commands AT! Commands Alphabetical List of Supported AT CommandsAlphabetical List of Supported AT Commands AT% Commands AT& Commands AT* Commands AT Commands AT@ Commands Other AT Commands Registers AT$ Utility Commands Mini-monitor Commands General AT Commands General AT Commands Defaults Isdn Configuration CommandsValues for n Isdn Configuration Commands INS-Net64, NI-1, or 5ESS, µ law will be used default None defaultDefault1 AT!D3=nNumber. Numbers are separated by a semicolon Default null string this is an optional valueAT!N2=n AT!N3=nAT!X56=n For more details, refer to the Rvscom documentationOn region 255 do not attempt 56k data call retry COM Port Configuration Commands COM Port Configuration Commands RingFor example, Connect Upon connection, the Diva T/A reports the DCE speedCall Control Commands Call Control Commands ATAATH Configuration Commands Configuration Commands Use the default settings AT!V0=nProfile Commands Multilink PPP Commands Multilink PPP Commands AT%M3=b3c665ac11 Endpoint Discriminator Class/AddressInternet Protocol IP Always On / Dynamic Isdn AT Commands Always On / Dynamic Isdn AT Commands Default 1000 bytes AT!X13=n when Bacp is disabled, seeWill be opened after the delay specified by AT!X10 AT!X14=nAT!X18 Default values for each setting, and is defined as followsDefault AT!X22=n Defined as followsConnection numbers affects the range ofAT!X21. SeeAT!X21 Default CF PPP overAT!X25=n AT!X26=nUtility Commands Start or display the Result of a Lapd trace Utility CommandsInternal TA access command reserved for VU Start or Display the Result of a PPP traceSoft reset the unit and enter the monitor Enter the monitor on the next resetStart an AO/DI X.25 Trace Register Commands AT?Register Commands Analog Device Commands Analog Device Commands AT*FnEnable with default values default To be disabledDisable. Recommended for modem/fax calls Enable using same terminal endpoint identifier as data portMini-monitor Commands AT Command Result Codes Connect AT Command Result CodesCarrier Connect Connect 1200T/75R Protocol Transparent ModeConnect 75T/1200R Protocol NoneIndex BACP/BOD