Data link layer protocol having adaptive framing

摘要

Example techniques of the present disclosure provide a first computing device comprising one or more processors and at least one module operable by the one or more processors to output, to a second computing device, a first set of HDLC protocol data units in accordance with a first format in which each of the first set of HDLC protocol data units includes a start-of-frame indicator, a length indicator, a data portion, and an end-of-frame indicator. The module may be further operable by the one or more processors to determine an inability of the second computing device to process at least one of the first set of HDLC protocol data units and output a second set of HDLC protocol data units in accordance with a second format in which each of the second set includes the data portion, a checksum portion, and the end-of-frame indicator and excludes the length indicator.

主权项

1. A method comprising:
outputting, by a first computing device and to a second computing device, a first high-level data link control protocol data unit in accordance with a first format, the first high-level data link control protocol data unit including a start-of-frame indicator, a length indicator, a data portion, and an end-of-frame indicator; determining, by the first computing device, whether the second computing device is able to process the first high-level data link control protocol data unit; and responsive to determining that the second computing device is unable to process the first high-level data link control protocol data unit, outputting, by the first computing device to the second computing device, a second high-level data link control protocol data unit in accordance with a second format, the second high-level data link control protocol data unit including the data portion included in the first high-level data link control protocol data unit, a checksum portion, and the end-of-frame indicator, wherein the second high-level data link control protocol data unit excludes the length indicator.