Unified link layer multi-protocol switching method based on Ethernet bus

Abstract

The present invention provides a unified link layer multi-protocol switching method based on the Ethernet bus, comprising: making the virtual channel correspond to the forwarding interface of the routing module by defining a virtual channel, each virtual channel is in one-to-one correspondence with the forwarding interface of the routing module, and the routing The module is configured for data routing, that is, to select the virtual channel on which the data will be forwarded; through an interface processing module located on the interface board, the data transmitted through the virtual channel is received and sent to the corresponding interface protocol processing module, different The protocol processing module corresponds to different interfaces; through the virtual channel configured above, the unified link layer multi-protocol exchange is realized, including data sending and data receiving. The unified link layer multi-protocol switching method of the present invention is based on the network switching device extending the interface through the interface board, and adopts the method of defining virtual channels to complete the data exchange at the Ethernet link layer, improve the data forwarding efficiency, and also facilitate network switching Equipment expansion and upgrade.

Description

technical field [0001] The invention relates to the technical field of device interface protocol exchange, in particular to an Ethernet bus-based unified link layer multi-protocol exchange method. Background technique [0002] Network switching equipment, as the hub connecting various communication transmission equipment, plays an important role in the communication network. With the continuous development of communication networks, the types and quantities of communication transmission equipment continue to increase, and the types of interfaces of transmission equipment are increasing. Currently commonly used interfaces are: MRC / CAN port, Ethernet port, serial port, K ​​port, E1 port, wired port, optical fiber port, etc. Different interfaces follow different protocols. Generally speaking, the serial port follows the slip protocol, the K port / E1 port follows the K port / E1 port protocol, and the Ethernet follows standard protocols such as IEEE802.3. However, in some special...

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Problems solved by technology

However, in some special fields, these interface protocols of communication transmission equipment are mostly customized by the manufacturers themselves and will not be disclosed to the public. The interface protocol can be customized for different interface boards

[0003] Most of the current network switching devices use the UDP transmission protocol when connecting to the interface board, and the data transmission and exchange efficiency is low.

Moreover, even if the interface protocol is known, it is directly expanded on the hardware board through the PCIE bus, which is not conducive to the expansion and upgrade of network switching equipment.

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