D-Link manual DI-206 Isdn Remote Router

DI-206 ISDN Remote Router

of data packets across multiple channels. Although MLPPP can be implemented on any WAN device, it was the rapid emergence of ISDN BRI as a cost efficient higher bandwidth alternative to modems which has driven the evolution and acceptance of MLPPP. Typically MLPPP is used to combine the speed of two ISDN BRI B- Channels to get 128Kbps of virtual capacity.

Before implementing MLPPP on the DI-206, please ensure that your ISP or the device to which you are connecting supports, and is configured for MLPPP.

MLPPP can be implemented in two ways, dynamically through the use of the Bandwidth on Demand (BOD), and statically. BOD causes the second ISDN port to place a call and add bandwidth to the ISDN connection when the BOD High Threshold is exceeded for the Add Bandwidth Delay period. Bandwidth can also be subtracted when ISDN throughput falls below the BOD Low Threshold and Subtract Bandwidth Delay parameters. Thus, BOD economizes MLPPP by maintaining only the bandwidth needed.

A static implementation of MLPPP is achieved when BOD is disabled but the ISDN ports have Multi-Link enabled. In this case, when the two ISDN ports have established a connection, the router will check to see if they are connected to the same source and whether the source supports MLPPP. If both conditions are met, the router will automatically bundle the two links together as an MLPPP connection.

Choosing Multi-Link PPP Configuration displays the following screen:

Items in the Multi-Link PPP Configuration window are described as follows:

•Bandwidth on Demand – Enables or disables BOD. When enabled, BOD will manage the implementation of MLPPP using the parameters defined in this window.

•BOD Criteria – Either TX, RX or TX+RX, where TX is Transmit and RX is Receive. The parameter defined here is used when monitoring the BOD High Threshold and BOD Low Threshold.

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