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Method for detecting link failure between media getway and media gatway controller

A link fault and media gateway technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problem of not being able to detect the link fault between MGC and MGW in time, affecting the normal operation of the system, and interfering with MGW and MGC Handling and other issues

Inactive Publication Date: 2007-08-29
HUAWEI TECH CO LTD
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Problems solved by technology

This is because, if the time threshold is set to the millisecond level, the MGC needs to send heartbeat detection messages on the link too frequently. As a result, a large number of detection messages will interfere with the normal event processing between the MGW and MGC and occupy too much System resources, thus affecting the normal operation of the system
[0012] To sum up, the existing link fault detection method between the MGW and the MGC cannot detect the link fault between the MGC and the MGW in time, resulting in a large number of call losses during the link interruption process, which greatly affects the service quality

Method used

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  • Method for detecting link failure between media getway and media gatway controller

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] The method of the present invention is applied to the H.248 protocol. In the H.248 protocol, a link detection packet is defined, and a link failure event is defined in the link detection packet, thereby extending the function of the H.248 protocol; The link detection notification indicates the link failure event and the link for link failure event detection to the MGW, and the MGW detects the link failure event on the link according to the indication of the notification; when the MGW detects a link failure event, it reports the link failure event The fault event is notified to the MGC, and stops sending H.248 messages on the link where the link fault event currently occurs; the MGC stops sending H.248 messages on the link according to the link fault event notification reported by the MGW.

[0036]The H.248 protocol was proposed...

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Abstract

A method for detecting fault of link between media gateway and its controller includes sending link detection note to MGW by MGC for pointing out link event including link detection packet and detection link; detecting link event by MGW according to control listed in note and reporting link event note to MGC when link event is detected by MGW , controlling H. 248 message sending on link having link event currently by MGW as per detected link event , controlling H .248 message sending on the link by MGC as per link event note reported by MGW.

Description

technical field [0001] The present invention relates to a method for detecting a link failure, in particular to a method for detecting a link failure between a media gateway (MGW) and a media gateway controller (MGC). Background technique [0002] In the WCDMA R4 system and NGN system, the switching equipment of the core network realizes the separation of bearing and control functions, that is, the original switching equipment is separated into two parts: MGC and MGW. The call control function is implemented by the MGC, while the bearer control and bearer interaction functions are implemented by the MGW. The MGC controls the MGW through the H.248 protocol. The bearer media supported by the MGW can be based on Asynchronous Transfer Mode (ATM) or Internet Protocol (IP), and the H.248 protocol can be carried by IP or ATM. [0003] Among them, the functions of the H.248 protocol can be divided into call-related and call-independent parts. The call-related part includes: call co...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L29/06
Inventor 陈诚
Owner HUAWEI TECH CO LTD
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