Session backup method and device of multi-channel protocol

A multi-channel and backup technology, which is applied in the session backup field of multi-channel protocols, can solve the problems that the master session and the slave session cannot be associated, the transmission fails, and the master session for the control connection and the slave session for the data connection cannot be determined.

Inactive Publication Date: 2018-03-02
HANGZHOU DPTECH TECH
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Problems solved by technology

[0004] The problem in the prior art is that the master session for the control connection and the slave session for the data connection cannot be determined during session backup, and the master session and the slave session cannot be associated after the backup, which may be caused by the aging of the master session before the slave session. causing the transfer to fail

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  • Session backup method and device of multi-channel protocol
  • Session backup method and device of multi-channel protocol
  • Session backup method and device of multi-channel protocol

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[0032] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the drawings in the embodiments of the present invention.

[0033] In network communication, for multi-channel protocols, such as FTP, RTSP and SIP, when transmitting data, generally two types of connections can be established, one is a control connection and the other is a data connection. Both parties can communicate based on a control connection Negotiate multiple ports and IP addresses for multiple data connections. The control connection is mainly used for the transmission of control information, and the control connection can negotiate the port information for establishing a data connection, etc.; the data connection is used for data transmission. During data transfer, the control connection remains connected. If the master sessio...

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Abstract

The application provides a session backup method and device of a multi-channel protocol. The method comprises the following steps: firstly backuping the main session, and commonly backuping the identification information of the main session and a session feature when detecting that the session feature which is negotiated based on the control connection and corresponding to the data connection of the multi-channel protocol is produced; searching the backuped main session by standby equipment according to the identification information of the main session, and associating the session feature with the main session; and finally backuping the slave session to the standby equipment, and associating the main session with the slave session based on an association relation between the main sessionand the session feature.

Description

technical field [0001] The present application relates to the field of computer communication, in particular to a session backup method and device of a multi-channel protocol. Background technique [0002] In order to improve the reliability of the network, two or more devices are usually deployed at key points of the network, and these devices are mutually backed up. In order to quickly restore various services when the backup device takes over the tasks of the master device after the master device goes down, it is necessary for the backup device to perform session backup based on the session information on the master device. [0003] When using a multi-channel session, it is necessary to first negotiate the address and port of the subsequent data channel in the control channel, and then create multiple data channel connections based on the negotiation result. The control connection is mainly used for the transmission of control information, and the data connection is main...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/1095H04L67/146H04L67/148
Inventor 袁野
Owner HANGZHOU DPTECH TECH
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