Gigabit Transmission Channel Design And Implementation Of T-MPLS Node

The most basic goal of the development and evolution of Telecommunications transport network is to reduce transmission cost, however, with the expansion of packet access bandwidth and NGN's deployment, time-division transmission can't fully meet this goal. Ethernet and MPLS networks have been developing rapidly with there unique advantages. Compared with light-based telecommunications transmission network, these networks have obvious defects, such as lack of reliability, poor survivability, weak OAM.So there is an urgent need for a new business-oriented carrier-class packet transmission technology, which can provide the same available, efficient and managed services to data traffic as the circuit traffic. So under this situation, transmission MPLS (Transport MPLS,T-MPLS) came into being.As the network platform construction part of a national "863" project which is "based on T-MPLS carrier-class packet transport network design",I was mainly involved in the discussion of network-related implementations, the network topology determination, as well as the whole Planning of the node module.This paper mainly introduced the design and implementation process of node transmission channel of Gigabit T-MPLS:first we get the model of TMPLS network referencing the existing Gigabit link layer protocols associated with T-MPLS draft agreements, and do simulations with this model.Then through theoretical analysis to the simulation results obtained, we draw conclusions. We do theoretical summary of our method, and further derived channel model.Finally we marked the Gigabit access and interface board on the FPGA based on the channel model.The first chapter of this paper is about the technical characteristics of T-MPLS and its present situation, and briefly describes the design tools and processes; The second chapter focuses on the hardware testbed and its various functional modules; The third chapter mainly describes the RTL implementation of gigabit transport channel, also with a detailed description of the establishment the submodules and the simulation results; the fourth chapter focuses on the up-layer function of the gigabit transmission channel, and briefly describes the realization. Chapter five is about the testing and verification.