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Method, equipment and system for detecting link break

A link interruption and link technology, which is applied in the field of communication network transmission, can solve the problems of SCTP user service message loss, remote communication equipment not being able to perceive SCTP link interruption in time, and long time, so as to achieve detection time reduction and accuracy Quickly detect and reduce the effect of business loss

Inactive Publication Date: 2009-06-17
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0010] To sum up, currently relying on the SCTP protocol to detect the disconnection of the SCTP link through packet retransmission detection takes too long, and the remote communication device cannot detect the disconnection of the SCTP link in time, and will take the burden of the interrupted SCTP link. Service data is transferred to other normally connected SCTP links, which will cause a large amount of service message loss for SCTP users

Method used

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  • Method, equipment and system for detecting link break
  • Method, equipment and system for detecting link break
  • Method, equipment and system for detecting link break

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Embodiment Construction

[0028] The embodiment of the present invention provides a method for detecting link interruption, which does not need to expand and change the SCTP protocol, and uses the connection maintenance capability of the SCTP protocol itself to communicate with the first communication device connected to the SCTP link, that is, the local end When the device side detects that there is an abnormal interruption of the SCTP link connection, it immediately sends a legal SCTP connection interruption message, such as a forced interruption message, to the second communication device at the opposite end, that is, the remote communication device connected to the SCTP link. (ABORT), notify the remote communication device to remove the interrupted SCTP link, and transfer the business data on the interrupted SCTP link to the normally connected standby SCTP link, such as between the local communication device and the remote If multiple SCTP link connections have been established between communication...

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Abstract

The embodiment of the invention discloses a method, a device and a system for detecting link interruption, wherein the method comprises the following steps: detecting the connecting state of a stream control transmission protocol SCTP link between a first communication device and a second communication device by the first communication device, generating SCTP link interruption message to transmit to the second communication device on the opposite end when SCTP link connection is detected to be unusually interrupted, notifying the second communication device to dismount the SCTP link which is interrupted, and transferring business data on the SCTP link which is interrupted to a standby SCTP link which is normally connected. The embodiment of the invention which is adopted can rapidly detect out a SCTP link which is not interrupted to be connected, timely notifies a far-end communication device to dismount the SCTP link which is disconnected, transfers business data on the disconnected SCTP link to other normally-connected SCTP links, and reduces the detection to business loss during linkage interrupt of the SCTP.

Description

technical field [0001] The invention relates to the technical field of communication network transmission, in particular to a method, device and system for quickly detecting link interruption in an IP network. Background technique [0002] The flow control transmission protocol SCTP is a transport layer protocol developed by the IETF. The original intention of the protocol is dedicated to signaling transmission, and later developed into a general transmission protocol that can be used more widely. Effective means will also have wider application. The SCTP connection in this article refers to the SCTP association of the SCTP protocol (IETF RFC4960). [0003] The SCTP protocol is applied to the IP network environment, so many mechanisms must reflect the characteristics of the IP network to the outside world. For example, when the SCTP connection is interrupted due to abnormalities in the IP network, etc., it needs to be retransmitted through passive means such as message retr...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/56
Inventor 陈友军
Owner HUAWEI TECH CO LTD
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