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Device and method for recombining internet protocol (IP) packet

An Internet protocol and IP data technology, applied in the field of network communication, can solve problems such as segment discarding and affecting network processing efficiency, and achieve the effect of reducing occupancy

Inactive Publication Date: 2005-02-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 4. If some segments do not arrive within a certain period of time, the reassembly buffer will also be released, and all previously arrived segments will be discarded
However, as the complexity of network processing increases, the host will complete a large number of high-level protocol processing. If the task of IP recombination is not separated from the host, it will affect the efficiency of the entire network processing.

Method used

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  • Device and method for recombining internet protocol (IP) packet
  • Device and method for recombining internet protocol (IP) packet
  • Device and method for recombining internet protocol (IP) packet

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Embodiment Construction

[0041] In order to make it easier for those skilled in the art to understand and realize the present invention, the embodiments of the present invention are described in conjunction with the accompanying drawings.

[0042] figure 1 A schematic diagram of an apparatus for reassembling IP packets according to an embodiment of the present invention is shown. The device receives IP packets through the input interface 110, and the reassembly control device 115 sequentially stores the received IP packets into the storage unit according to predetermined rules. Each segment of the IP message is connected by a chain, and after the last segment of the IP message arrives, the entire message is reassembled and sent to the upper layer together.

[0043] In the present embodiment, the receiving IP message is completed by the reorganization control device 115; the message storage is completed by the reorganization control device 115, the fixed-length storage unit 125, the storage unit linke...

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Abstract

The device includes following parts: input interface for receiving IP message; storage unit for storing the received IP message, the storage unit includes multiple storage units in fixed length; recombination control device stores segmented each message into multiple storage units in fixed length based on preset rules; linked list device for describing relation of linked messages, and sends whole recombined message to higher layer when last segment of IP message is arrived. The invention recombines segmented messages at IP layer in real time, reduces occupancy of CPU when IP recombination in high flow rate.

Description

technical field [0001] The invention belongs to the field of network communication, and in particular relates to a device and a method for recombining IP packets in TCP / IP (Transmission Control Protocol / Internet Protocol). Background technique [0002] At present, the packets in the TCP / IP protocol are limited by the maximum packet length transmitted by each link layer, but the packets transmitted by the application layer are of different lengths. If the packet exceeds the link layer packet length, it must be transmitted in the IP layer. to segment. After the IP packets of each segment arrive at the destination IP address, the segmented IP packets need to be reassembled and sent to the upper layer for processing. [0003] The device and method for recombining IP packets in the TCP / IP protocol are implemented by software based on a processor. The execution of software tasks is usually all executed serially. The usual processing process is: when the segments of the IP packe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/28H04L29/06H04Q3/545
Inventor 孙文华李敏秋
Owner HUAWEI TECH CO LTD