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Method and device for message fragmentation reassembly

A message fragmentation and queuing technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as screen pause, voice interruption, and normal operation of the protocol, so as to enhance support, solve failures, and ensure normal operation running effect

Inactive Publication Date: 2012-04-04
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] For application layer protocols with high latency requirements, the 30-second formulation time may affect the normal operation of the protocol
For example, delay-sensitive application layer protocols related to voice application protocols, video application protocols, etc., will cause problems such as voice interruption and picture pause due to the lack of receiving messages for a long time, which will affect the normal operation of the protocol

Method used

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  • Method and device for message fragmentation reassembly
  • Method and device for message fragmentation reassembly
  • Method and device for message fragmentation reassembly

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Embodiment Construction

[0015] In this section of the detailed description, there is shown and described the preferred embodiment of the invention by way of illustration only of the best mode contemplated by the inventors for carrying out the invention. As will be realized, the invention may be modified in various obvious respects without departing from the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0016] For delay-sensitive upper-layer protocols, they often have a high tolerance for packet integrity. Therefore, for this type of message, you can set a fast reassembly time. After the fast reassembly time arrives, analyze the reassembly queue to determine whether the information contained in it meets the sending conditions. The text fragments are filled to realize fast uploading and ensure the normal operation of delay-sensitive upper-layer protocols.

[0017] The specific method is: when it is determined that the reorgani...

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Abstract

The invention discloses a method and a device for message fragmentation reassembly, which judge whether information contained by a reassembly queue meets set up-supplying conditions by determining the time when the reassembly queue which needs to be fast reassembled reaches a set fast reassembling time and not all of the message fragmentation is completely received. Under the condition that the up-supplying conditions are met, missed message fragmentation of the reassembly queue is filled, thereby achieving fast up-supplying, guaranteeing normal running of an upper layer protocol which is sensitive to time delay, and strengthening support for like real-time services.

Description

technical field [0001] The invention relates to message processing technology, in particular to a method and device for message fragmentation and reassembly. Background technique [0002] The maximum transmission unit (MTU, Maximum Transmission Unit) refers to the size of the largest datagram that can pass through a certain layer of a communication protocol. When a packet sent by a device to another device exceeds the MTU of the outgoing interface of any Layer 3 forwarding device on the forwarding path, the packet will be fragmented according to the MTU of the outgoing interface and sent to the to the upper layer protocol processing. [0003] The reassembly mechanism of the existing message fragmentation is: when the line or other reasons cause the message fragments to fail to reach the reassembly host within the specified time (30 seconds specified in the agreement), the reassembly host will determine that the reassembly fails and discard the received report. Fragment the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L47/431
Inventor 侯叶飞
Owner NEW H3C TECH CO LTD
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