Method and system for link failure detection and device for link failure detection

A technology for link failure and detection equipment, applied in the field of communications, can solve the problems of slow link detection and detection, failure to detect failures in the sending direction, etc., to achieve fast two-way fault detection, reduce operation and maintenance costs, and facilitate deployment.

Active Publication Date: 2008-02-13
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a method system and equipment for link fault detection to solve the

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  • Method and system for link failure detection and device for link failure detection
  • Method and system for link failure detection and device for link failure detection

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Embodiment Construction

[0024] The embodiment of the present invention aims at the problem that the detection speed is slow and the fault in the sending direction cannot be detected in the prior art, and provides a communication link fault detection method, system and equipment, and the embodiment of the present invention can be applied to all IP-based networks Devices, such as access gateway AG, media gateway, signaling gateway and other network devices with IP addresses. The embodiment of the present invention only uses AG as the best embodiment to describe the technical solution. Those skilled in the art should understand that other IP-based network devices can also be implemented through the technical solution disclosed in the embodiment of the present invention.

[0025] Referring to FIG. 1 , FIG. 1 is a schematic diagram of an embodiment of a communication link fault detection method according to an embodiment of the present invention.

[0026] In order to make the description of the embodiment...

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Abstract

The present invention provides a method, a system and a device for the detection of link faults in the field of communication, which is used to detect the communication link between a communication device or a host and a first-hop routing device. A detection message is formed in a detection device, the destination IP address in the message is the IP address of the detection device, the destination media access control (MAC) address is the MAC address of the first-hop routing device, and the source MAC address is the MAC address of the detection device; the detection message is transmitted by a hardware and retransmitted by the routing device based on the IP address, and according to the received message, the detection device determines whether the link is faulty. Suitable for the large-scale networking, the present invention can realize the rapid two-way faulty detection, reduce the maintenance cost of operation and does not have the problem of protocol intercommunication among devices, the deployment is simple, and only the normal date plane can be retransmitted by the first-hop routing device, so the performance load of the first-hop routing device does not exist.

Description

technical field [0001] The present invention relates to the communication field, in particular to a communication link detection method, system and equipment. Background technique [0002] With the application of IP technology and the development of NGN (Next Generation Network) technology, AG (AG AccessGateway, access gateway) has become more and more widely used as a voice access device. In order to improve the reliability of AG networking, AG Dual-link uplink networking will be adopted. When the dual-links are running in active and standby protection, a link failure detection mechanism is needed to quickly detect the failure of the main link, and quickly switch to the backup after the failure of the main link. links to ensure service availability. [0003] The inventor found in the process of realizing the present invention that the detection method in the prior art is mainly physical interface state detection, that is, by detecting the link state of the PHY layer of the...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04M3/22H04L12/56H04L45/74
Inventor 魏家宏徐全松
Owner HUAWEI TECH CO LTD
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