动态多太比特核心光网络技术浅析

摘要

随着信息产业的大数据业务发展,传统的网络资源已经不能满足人们的要求,新一代网络体系必将发生变革并产生新一代网络（NGN）,动态多太比特核心光网络（CORONET）计划是由美国提出来的新的一代网络计划,主要是寻求高度动态、多太比特核心光网络体系结构、协议、控制和管理的方案。利用波分复用（WDM）带宽资源和强大的波长路由能力,构造一个全球范围的核心光网络,即连接全球范围内主要站点的大容量、长距离基础设施。将IP over WDM的全光交换技术应用到CORONET网络系统中,采用的三次握手分布信号协议方法（3WHS）通过动态链接可以达到百毫秒级的快速建立时间并极大提高网络安全。最后,借鉴该网络计划的发展情况阐述对我们国家光网络发展所带来的启示。%With the development of information industry,resources of traditional network cannot satisfy the requirement of people,a new generation of network system revolution will produce a new generation network(NGN).The Next Generation Core Optical Networks(CORONET)are new Generation plans proposed by DARPA of USA.The objective of the CORONET program is to develop the architecture,protocols,and control and management software for highly dynamic,multi-terabit global core optical networks with greatly enhanced performance,security and survivability.By use of wavelength division multiplexing(WDM) and wavelength routings.Aim to construct a global core optical network,which connect the global large capacity and long distance main sites.IP over WDM of all optical switching technology is applied to the CORONET network system,it is greatly enhance the network security and it can reach hundreds of millisecond time by using of the three-way-handshake distributed signaling protocol(3WHS) method through dynamic link.Finally,draw lessons from the development of network plan for the enlightenment of our country.