Low-latency Ethernet repeater and method based on t-type structure

Abstract

The present invention proposes a low-latency Ethernet transponder and method based on a T-shaped structure, which is used to solve the problem of wiring redundancy in existing switches and the problem of large and uncertain time delay in existing forwarding methods. The transponder includes T-shaped distributed ports and processing units. The processing unit includes: left port frame processing module, right port frame processing module, user port frame processing module, address learning and search module, dedicated protocol processing module and user port adaptation Module; the forwarding method includes: link status judgment, cache data frame, frame identification and classification, link reconstruction, PAUSE frame classification, configuration of transponder, address learning and search, establishment of output queue, formation of PAUSE frame, and output to the port. The invention can fully reduce user access wiring redundancy, reduce forwarding time delay and ensure forwarding time delay is fixed, detect and rebuild network link in time when network link fails, and can be used to build high-speed real-time access network.

Description

technical field [0001] The invention belongs to the technical field of communications, and relates to a network forwarding device and a forwarding method, in particular to a T-shaped structure-based low-delay Ethernet forwarding device and method, which can be used to build a high-speed real-time access network. Background technique [0002] Ethernet is a common network connection method in a local area network. Users generally connect to switching devices in the network, such as switches or routers, and then connect to other networks through the switching devices. Ethernet switches are designed to meet the needs of data exchange when multiple users access the network at the same time. Traditional Ethernet switches are usually multi-port switches. When multiple users access the switch, a switch-centered star network is adopted. It needs to be connected to the user interface of the switch through an independent cable. In some occasions that require simple wiring, such as airp...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to overcome the defects of traditional Ethernet switching technology, and propose a low-delay Ethernet forwarding device and method based on T-shaped structure, which is used to solve the problems of wiring redundancy, long delay and Uncertain delay problem

Images