Port state synchronization method and system and port state synchronization associated devices

Abstract

The invention discloses a port state synchronization method and system and port state synchronization associated devices. The fact whether a first service interface of a PHY device changes or not is judged through the PHY device or an external processor connected to the PHY device; if the first service interface of the PHY device changes, a second service interface of the PHY device is controlled to restart self-negotiation; a self-negotiation announcement message is sent by the second service interface to a first device connected with the second service interface so that the first device can be triggered to synchronize states of the second service interface and the first service interface. The aims that port state negotiation and synchronization is carried out between an MAC device or the first device and the PHY device through the service interfaces is achieved, the PHY device and the MAC device are connected without an MDIO interface, and the design of a circuit interface is simplified; the PHY device and the MAC device are connected without additional management modules or management channels, information interaction nodes are decreased, and reliability for management on information transmission is enhanced.

Description

technical field [0001] The invention belongs to the technical field of computers, and in particular relates to a port state synchronization method, related equipment and a system. Background technique [0002] When the communication equipment in the existing Ethernet is in the application state, the link layer (Media Access Control, MAC) device and the physical layer (PHYSICAL, PHY) are generally implemented through the Management Data Input / Output (MDIO) interface. ) Transfer of port status information and control management information between devices, and transfer of service information through the service (Ethernet, Eth) interface between the MAC device and the PHY device. Wherein, the PHY device includes a system-side port and a line-side port, specifically connecting the system-side port to the MAC device to implement a service interface between the MAC device and the PHY device; and, connecting to the peer device through the line-side port of the PHY device, In order...

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Problems solved by technology

In one of the devices for realizing the connection of this kind of MDIO interface, the PHY equipment and the MAC equipment are respectively arranged on different physical boards, and the number of the PHY equipment and the MAC equipment arranged on each physical board is large, so it needs to be installed on the back The same number of MDIO interfaces as the number of PHY devices or MAC devices is set on the board to realize the connection between the MDIO interfaces of the PHY devices and MAC devices, which consumes a lot of hardware resources and wastes the space for wiring on the backplane

[0004] Another connection realization method of the existing management data interface is to set a system equipment management module independent of the external processor, so that there are many information transmission paths, the signal connection is complicated and cumbersome, and the communication nodes are increased, thereby increasing the signal processing. Delay, reducing the reliability of link layer and physical layer communication

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