Fragmentation and reassembly method based on network protocol version six

A network protocol and version technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problem of network transmission capacity is not enough

Inactive Publication Date: 2010-12-22
南京邮电大学资产经营有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the network speed increases to 1Gbps and 10Gbps, the transmission capacity of the network is no longer the main constraint factor.

Method used

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  • Fragmentation and reassembly method based on network protocol version six
  • Fragmentation and reassembly method based on network protocol version six
  • Fragmentation and reassembly method based on network protocol version six

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Experimental program
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Embodiment Construction

[0050] The method of the present invention mainly includes six parts: the reorganization principle of the fragment package, the fragment tree, the fragment detection, the classification of the fragment, the advanced processing mechanism, and the specific reorganization method.

[0051] 1. Reorganization principles of fragmented packets:

[0052] At the destination node host, the fragmented packet is reassembled into the original unfragmented form, such as figure 2 As shown (note: the reassembled data packet does not contain the fragmentation extension header).

[0053] Principles to be followed in reorganization: the original packet can only be reassembled by fragmented packets with the same source address, destination address and The packet whose displacement is 0) consists of all the headers (excluding the header) in front of the fragment header, and make the following two modifications:

[0054]Obtain the value of the "Next Header" field in the last header of the unfraga...

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PUM

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Abstract

The invention relates to a segmentation and reset method based on the Version 6 of a network protocol, which is a method that can improve the transmission performance of the new generation Internet protocol (IPV6) by improving the segmentation and reset efficiency, the specific method includes the following steps: (1) a segmentation and reset system receives a data segment transmitted from a network; (2) the data segment received in step (1) is sent to a segment detection module; (3) the data segment that is not the currently-processed data segment distinguished in step (2) is transmitted to a segmentation tree module for cache, and the segmentation detection module is invoked to guarantee that the segmentation on the branch of the segmentation tree is legal during the branch cache process; 4) the segments passing the authentication in step (2) are transmitted to a segment classification module, and the segments are classified into four types and imprinted with type marks; (5) an advanced processing module is invoked to judge if advanced processing can be carried out, if so, a specific reset module is started to complete the restoration of a data package; otherwise, the data package is transmitted to the segment tree module for cache; and (6) the coming of the next segment is waited and the process is returned to step (1).

Description

technical field [0001] The invention relates to a method for improving the transmission performance of a new generation of Internet protocol—IPV6 by improving fragment recombination efficiency, and belongs to the technical field of network data transmission. Background technique [0002] Web technology drives the Internet to develop at an astonishing speed. Ten years ago, people concerned about the future Internet expansion performance began to worry that the limitations of the IPv4 (Internet Protocol Version 4) network itself would be difficult to support the sustainable development of the Internet. For this reason, IETF (Internet Engineering Task Force) has launched a new generation of Internet protocol—IPv6 (Internet Protocol Version 6). Compared with IPv4, IPv6 provides many new features, such as address space expansion, security settings, and automatic configuration. [0003] The development of IPv6 has been supported by many equipment manufacturers, and even raised t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L12/56H04L29/06H04L47/43
Inventor 孙知信王魁英
Owner 南京邮电大学资产经营有限责任公司
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