End-to-end Ethernet protection method and communication apparatus adopting the same

Abstract

The invention discloses an end-to-end method for protecting Ethernet which can realize rapid protection switching and has high reliability and a communication device in which the method is adopted. The main technical proposal is that two single boards are adopted at the two ends respectively for 1+1 board protection, and the primary and the spare states between the two boards can be switched mutually; each board is provided with two net openings, and the two net openings are connected to the net openings of a different board at the opposite end; the opening and closing of each net opening arecontrolled as the following rules: all the net openings of the primary board are opened, all the net openings of the spare board are closed, when the primary board is detected that all the net openings are fail or the primary board is not in position, the spare board opens all the net openings thereof. The principles of switching between the primary and the spare boards are: the quality relation of the two boards is confirmed, the board correctly inserted in the equipment is better than the board which is not in position, when the two boards are in position, less failure of the net openings is better; then the better board is taken as the primary plate, the worse board is taken as the spare board, when the conditions for judging the quality relation of the two boards are equal, the primary and spare relation of the two boards is not changed.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to an end-to-end Ethernet protection method and an Ethernet communication device adopting the method. Background technique [0002] Communication equipment usually consists of many single boards, and communication between single boards is required. In the past, HDLC bus was mostly used for inter-board communication. Now more and more Ethernet is used as the means of inter-board communication. Using Ethernet can not only facilitate inter-board communication on the backplane, but also facilitate communication between two boards that do not have a direct backplane connection through a network cable. The physical characteristics of the interface of the network cable lead to: when the network cable is used as the Ethernet communication medium between two boards, the communication reliability is low, and how to protect it becomes a problem. [0003] In communication equ...

AI Technical Summary

Problems solved by technology

At present, the commonly used method for Ethernet communication protection is the Spanning Tree Protocol (STP). This protocol has a complex algorithm and takes a long time to converge. It takes a few seconds to complete the protection switching with the Rapid Spanning Tree Protocol. Therefore, this method is not suitable for boards. Inter-communication protection

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