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Backup method supporting TCP protocol connection and device thereof

A protocol connection and backup technology, applied in the field of communication, can solve problems such as unfavorable equipment maintenance and debugging function expansion, complex switching process, etc., and achieve strong maintainability and functional scalability, clear switching, and simple switching process.

Inactive Publication Date: 2012-07-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the switching process is complicated, and TCP packet flow delimitation processing is required, which is not conducive to equipment maintenance and debugging and function expansion

Method used

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  • Backup method supporting TCP protocol connection and device thereof
  • Backup method supporting TCP protocol connection and device thereof
  • Backup method supporting TCP protocol connection and device thereof

Examples

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Embodiment Construction

[0018] In order to make the technical scheme of the present invention and its beneficial effects clearer, the following examples are listed in detail:

[0019] In one embodiment of the present invention, as figure 1 As shown, the hot backup method of the active and standby boards supporting the TCP protocol connection includes:

[0020] 101. Send the first message to the input message backup buffer area on the main board

[0021] When implementing the embodiment of the present invention, before sending the first message to the input message backup buffer area on the main board, it is necessary to make environmental preparations for the synchronization of the TCP connection state. Usually, the standby board can be inserted into the routing device, and the corresponding network socket (Socket) module, TCP module, and application module can be created on the standby board to prepare for the synchronous backup of the connection state of the TCP protocol. At the same time, the up...

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PUM

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Abstract

A backup method supporting TCP protocol connection uploads a first message to an input message backup cache of a main board; after the validity of the first message is checked, the first message is copied; the copied first message is sent to an input message backup cache of a standby board; the first message is uploaded to a TCP module of the main board; after the first message is processed by the TCP module, a network socket module and an application module of the main board, a second message is sent to an output message backup cache of the main board; after the validity of the second message is checked, the second message is copied; the copied second message is sent to an output message backup cache of the standby board; and the second message is sent to the network socket module of themain board. The embodiment of the invention also discloses a communication system supporting TCP protocol connection. In the main-standby board hot backup method supporting TCP protocol connection, the switching process is simple, complex TCP message flow delimitation is avoided, and thereby the maintenance, debugging and function extension of the system are convenient.

Description

technical field [0001] The invention relates to the communication field, in particular to a backup method and equipment supporting TCP protocol connections. Background technique [0002] Transmission Control Protocol (TCP, Transmission Control Protocol) is a connection-oriented, reliable, byte stream-based transport layer communication protocol. In the simplified Open System Interconnection reference model (OSI, Open System Interconnection), TCP completes the functions specified by the fourth layer transport layer. In the Internet protocol suite, the TCP layer is an intermediate layer located above the IP layer and below the application layer. [0003] Reliable connections are often required between the application layers of different hosts, but the IP layer does not provide such a flow mechanism, but provides unreliable packet exchange. In order to ensure that the data packets transmitted to the peer end are received in order, TCP gives each data packet a sequence number;...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/06H04L49/901
Inventor 刘彦夫范一鸣刘元章王春风
Owner HUAWEI TECH CO LTD
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