State detection method based on main and backup Ethernet interface

Abstract

The invention discloses a condition detecting method based on main and auxiliary Ethernet interfaces, which is characterized by the following: detecting interface condition according to ARP report for main and auxiliary interfaces separately; switching the equipment interfaces to reinforce the reliability of network transmission; detecting accident among route equipments; improving the wholeness of accident detection.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a state detection method based on master and backup Ethernet interfaces. Background technique [0002] In the traditional field of data communication, communication devices are connected in a mesh form. There are multiple reachable paths from one communication device to another communication device. If one path fails, routing protocols such as OSPF (Open Shortest Path First) After route convergence is performed, another path is used for communication between two communication devices. Due to the slow speed of route convergence and slow fault recovery, which is generally longer than 30 seconds, and the faults that occur may not be detected in time, this method is generally not available in the telecommunications field. [0003] In the field of telecommunications, especially in the field of NGN (next generation network), in order to ensure the reliability of services...

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Problems solved by technology

[0006] In the above method, because the physical layer of the standby interface of the access device is closed, it is impossible to detect whether the standby interface is faulty. In this way, when the primary interface fails, the standby interface may also be faulty if the primary interface fails. The standby interface only detects the failure of the active and standby interfaces through the UP / Down signal of the physical layer. Not only the fault above the physical layer cannot be detected, but also the fault of a certain section of the physical layer in the cross-transmission network is not detected. In the case of direct connection networking, if the sending direction of the access device fails but the receiving direction is normal, the current detection method for active and standby interface failures cannot detect it.

[0007] To sum up, the existing fault detection method makes the standby interface act as a virtual device, and does not really play the role of backup of the active and standby interfaces. As a result, the switchover of the active and standby interfaces will fail and the service will be interrupted.

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