Researches On Distributed Ethernet Switcher Architecture

With the high-speed development of network and the enlargement of the demand of network's application, it is the Ethernet switcher that developed from the TCP/IP network becomes the indispensable communication device, and distributed Ethernet switcher especially works as the central routing device on the core network or backbone network for its high-capacity , high-performance and expansibility.This article mainly talks about the architecture of the distributed Ethernet switcher based on TCP/IP. It emphatically introduces distributed switcher's device management, forwarding flow and forward-controlling flow. Device management assembles every individual hardware module into an uniform one, which ensures the other software modules running effectively; Forwarding is a process in which the data package is switched by MAC, routed through IP address and forwarded by MPLS label; the control of forwarding is the core of this system, which effectively manages the forwarding path of the data package by every kinds of network protocol.For the future of the network development, this article describes the application of the net processor as the core of NGN in the distributed switcher. The organic combination of the net processor and the existing ASIC chipsets provides a living space for its application at nowadays stage, at the same time promotes the application and development of the voice and video technology.