Duplexing pattern matching method and apparatus, communication system

Abstract

The invention discloses a duplex mode matching method, apparatus and communicating system. The duplex mode matching method includes: when the local terminal port of the local Ethernet apparatus establishes connection with the remote terminal port of the interconnection remote Ethernet apparatus through parallel detection function, the local Ethernet apparatus transmits request acquiring message to the interconnection remote Ethernet apparatus, and the request acquiring message is used to acquire the duplex mode of the remote terminal port; the local Ethernet apparatus receives response message returned back from the interconnection remote Ethernet apparatus, the response message carries duplex mode information of the remote terminal port; the local Ethernet apparatus identifies the duplex mode of the remote terminal port according to the duplex mode information, and switches the duplex mode of the local terminal port into a mandatory full-duplex mode when the duplex mode of the remote terminal port is the mandatory full-duplex mode. The present invention can effectively realize exactness recognition and matching of duplex modes of both interconnection parties of Ethernet apparatus, without changing the connection mode of the physical connecting lines of the Ethernet interfaces.

Description

technical field [0001] The invention relates to communication technology, in particular to a duplex mode matching method and device, and a communication system. Background technique [0002] Ethernet is a local area network connection technology standardized by the Institute of Electrical and Electronics Engineers (hereinafter referred to as IEEE). At present, there are mainly two types of Ethernet connection media used in mainstream applications: optical fiber and unshielded twisted pair (Unshielded Twisted Paired, hereinafter referred to as: UTP). Among them, due to the high price of optical fiber and laser transceiver, the cost of implementing optical fiber connection is very high. Therefore, optical fiber connection is mainly used for the connection of the campus backbone network. Relatively speaking, UTP is cheap and easy to install. Therefore, it has been widely used in the field of cost-sensitive desktop connections (that is, the connection of data terminal equipment...

AI Technical Summary

Problems solved by technology

This solution has at least the following problems: the connection method of the physical connection line of the Ethernet interface needs to be changed, and the interface after the connection method change does not follow the IEEE802.3 standard, so that the port cannot be compatible with other manufacturers' Ethernet devices for interconnection

Although this solution does not need to change the connection mode of the physical connection line of the Ethernet interface, there are at least the following problems: the basis for judging the duplex mismatch in this solution is relatively subjective, and the ports on both sides of the interconnection work in forced half-duplex mode At the same time, if the network data forwarding is very busy, a large number of conflicts and CRC error packets may appear on the port. The full-duplex working mode, on the contrary, makes the duplex mode mismatch, the packet loss phenomenon is more serious, and the network quality and data transmission stability are worse.

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