Multi-link binding protocol message zone receiving method

Abstract

A method for receiving multi-link binding protocol message fragments, comprising: setting a pointer and a sequence number window; receiving message fragments, and judging whether the serial number of the received message fragments is continuous with the pointer; if the judgment result is a report If the serial number of the message fragment is not continuous with the pointer, then judge whether the serial number of the message fragment is located in the sequence number window; if the judgment result is that the serial number of the message fragment is outside the sequence number window, modify the pointer to jump change tracking. The invention reduces the dependence of the receiving end on timing IDLE message fragmentation, and also shortens the service recovery time of the receiving end. In addition, the present invention can tolerate a certain degree of mutation of the serial number of message fragments and can judge discontinuous messages, quickly track the jump of the serial number of message fragments, speed up service recovery, and improve the robustness of the system .

Description

technical field [0001] The invention relates to communication technology, in particular to a method for receiving multi-link binding protocol message fragments. Background technique [0002] The Multilink Binding Protocol (MP, Multilink PPP) is a method of bundling multiple physical channels through the protocol. According to the protocol RFC1990, the corresponding serial number is added, and multiple physical channels are regarded as a logical channel, which provides more than a single physical channel. Greater bandwidth to meet user bandwidth requirements. In the implementation of the multi-link bundling protocol, the receiving end of the message fragments sorts the received message fragments by detecting the sequence number, so as to ensure that the logical channel uploads the message fragments to the The network layer at the receiving end handles it. [0003] The multi-link bundling protocol internally provides an order-preserving mechanism, that is, when the link is e...

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Problems solved by technology

[0008] However, the disadvantages of the above two solutions are: using method 1, the IDLE message fragments sent regularly by the sender will consume part of the bandwidth; and using method 2, once the sequence number of the message fragments received by the receiving end jumps, The receiving end uses the timer to judge that the packet fragment loss speed is too slow, the link recovery time is long, and the user needs to wait for a long time

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