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Method for sequential recombination of PPP multi-link protocol message

A multi-link protocol and message technology, which is used in the field of sequential reorganization of MP fragments

Inactive Publication Date: 2007-01-31
ZTE CORP
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  • Summary
  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for sequentially reorganizing PPP multi-link protocol messages, to solve the problem that RFC1990 cannot solve the problem of MP fragment loss or disorder on the link, to ensure that the receiving end loses packets as little as possible and guarantees The reassembled PPP message is not out of order

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  • Method for sequential recombination of PPP multi-link protocol message

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Embodiment Construction

[0029] Before describing in detail the method for sequentially reassembling PPP multi-link protocol packets of the present invention, several concepts of the present invention are explained to a certain extent, so as to describe the embodiments in detail later.

[0030] There are two threads in the method for reorganizing the PPP multi-link protocol message in sequence in the present invention:

[0031] The first thread sends a message to the MP reassembly queue. The reassembly queue is a cache unit. The embodiment of the present invention takes a cache with a size of 4096 units as an example for illustration. , directly put the message into the unit A of the cache;

[0032] The second thread reads the packets in the MP reassembly queue and reassembles them.

[0033] At the same time, there are the following parameters:

[0034] E_First, when processing an MP queue, the serial number of the first MP, set its initial value to 0 before the process starts;

[0035] E, the expe...

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Abstract

The invention discloses a method for recombining PPP multi-link protocol message in sequence, comprising: recombining and uploading PPP message which can be recombined and has MP fragment with expected serial number; if PPP message can not be recombined but has valid serial number, recording the valid serial number and setting a time threshold; if no valid serial number exists, ending processing the MP queue; when the time mark exceeds the time threshold, recombining and reporting all recombinable MP fragments between expected and valid serial numbers and discarding MP fragments unable to be recombined. And it can assure link transmission efficiency and reliability.

Description

technical field [0001] The invention relates to a method for sequentially reorganizing MP fragments of a channel when the MP protocol is implemented for point-to-point transmission, in particular to a method for sequentially reorganizing MP fragments carrying PPP messages on an E1 link in the communication field. Background technique [0002] RFC1990 describes a PPP multilink protocol (PPP Multilink Protocol), which can map multiple physical links into a logical link, which carries PPP packets, and a packet is divided into many small frames (MP Fragments) are transmitted over different physical links to increase bandwidth. MP fragments need to be reassembled according to the sequence number at the receiving end to restore the original PPP message. When MP fragments are lost or out of order on the link, how to ensure that the receiving end minimizes packet loss and ensures that the reassembled PPP packets are not out of order. RFC1990 does not provide a solution. Contents ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04L47/43
Inventor 孙颂辉王飞祥陈诗军周志雄
Owner ZTE CORP
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