网络服务器系统与新型光突发交换网络解决方案-解决方案.doc

网络服务器系统与新型光突发交换网络解决方案 -解决方案 摘要：随着用户带宽超摩尔定律增长、传输链路容量的迅猛增加，节点服务器系统能力成为制约网络容量增长的主要瓶颈。网络业务的发展趋势不会坐等高性能光子器件的成熟和实用化，可以预见未来 10～ 20 年内光子器件瓶颈将制约着新型光网络节点能力提高。文章将网络分成接入、节点和链路 3 个网络服务器系统，提出一种全新的光网络体系架构 —— 基于服务的光网络体系架构，通过一个隐函数从网络代价、能耗和容量等角度定性考察各服务器系统对网络性能的影响。由此提出了双光纤链路与 IP 插空联合的光突发交换解决方案，以缓解光子器件瓶颈的限制。 关键词：光突发交换；双光纤链路模型； IP 插空；网络服务器系统 Abstract:Withthedevelopmentof users’ broadband, transmission capacities grow rapidly. The capability of node server has been the bottleneck of network capacity. The node performance is restricted for the absence of optical buffer and optical logic devices. In this paper, a new architecture of optical networks— the server-based optical networks— is proposed. From the point of this new architecture, the network can be modeled as a network server system with three type servers— the access server, the node server, and the link server. The network performances such as cost, energy consume and network capacity can be affected by the capability of these three types of servers