A method for primary and standby machine to take turns on TCP connection

A technology of standby connection and standby machine, which is applied in the field of communication and can solve problems such as interruption and communication interruption.

Inactive Publication Date: 2005-01-19
XIAN DATANG TELECOM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when the machine is down, once the main machine is reduced to the standby machine and stops working, for example, the computer restarts or the computer crashes, these will inevitably cause the interruption of the original TCP connection with the remote machine, resulting in the interruption of the original communication

Method used

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  • A method for primary and standby machine to take turns on TCP connection
  • A method for primary and standby machine to take turns on TCP connection
  • A method for primary and standby machine to take turns on TCP connection

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Embodiment Construction

[0062] Below in conjunction with embodiment the present invention is described in further detail.

[0063] see Figure 5 , which is a schematic network diagram of an application example of the present invention. This is a simple network setup: the server is the TCP server, has a network card (marked as Eth0), and is configured with an IP address of 202.100.100.10.

[0064] Client A and Client B are the active and standby TCP clients, each with two network cards. Configure the same IP address 202.100.100.3, which is in the same network segment as the IP address of the server; client A and client B configure the same physical address on Eth0 respectively.

[0065]Client A and client B's Eth0 are connected to the server's Eth0 through a hub first and then through an Ethernet switch. The use of the hub is to enable client A and client B's Eth0 to share the TCP packets sent by the server.

[0066] There are other communication methods between client A and client B.

[0067] The...

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Abstract

The invention discloses a method of master and backup machines applies TCP to switch TCP connection as communicating with remote-end machine, thus effectively avoiding the interruption of the TCP connection with remote-end machine as the master and backup machines switch between them, not influencing the continuity of the communication with the remote-end machine and making the remote-end machine not sense the switching course. It makes a certain small-rage reformation on traditional TCP protocol stack to adapt to the requirement of realizing the invention. It can be widely applied to the master-backup machine network communication by TCP.

Description

1. Technical field [0001] The design of the invention belongs to the technical field of communication, and relates to a method for performing TCP connection switching when a master and a standby machine use a transmission control protocol (TCP, Transmission Control Protocol) to communicate with a remote machine. 2. Background technology [0002] In the communication of the computer network, the local computer and the remote computer often use the TCP protocol for message transmission. Due to other considerations such as stability, the local computer often adopts a primary and a standby dual computer for protection. The advantage of the working mode of the active and standby dual machines is that: the main machine needs to stop working for some reason, or the main machine crashes due to a failure, the standby machine can take over from the main machine and continue to communicate with the remote computer. [0003] The TCP protocol is a reliable transmission protocol with con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/74H04L29/06
Inventor 杨国巍段云龙刘军鹏
Owner XIAN DATANG TELECOM
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