Overlay网络下的超算中心间广域网流量调度研究

Research on WAN Traffic Scheduling Between SCs Under Overlay Network

广域网上数据中心间的流量互通受复杂互联网环境的影响,跨运营商ISP之间的流量调度对网络传输速率和网络传输延迟影响很大,简单网络架构下的传统流量调度方案已经不能满足迅速增长的网络流量,严重影响了传输服务的质量.本文以国家高性能计算环境为研究背景,提出一个新的互联网环境多超算数据中心流量调度模型,利用Overlay网络构建一个流量调度完全可控的虚拟网络,通过改进底层网络协议和路由更新算法,在端到端节点间使用转发节点进行流量调度.本文通过实际超算环境进行实验,结果表明在跨运营商网络环境下使用基于Overlay网络的流量调度,可以明显降低网络传输延迟,提高传输带宽.

The traffic intercommunication between data centers on the WAN(wide area network)is affected by the complex Internet environment.The traffic scheduling between cross-operator ISPs has a great impact on the network transmission rate and network transmission delay.The traditional traffic scheduling scheme under the simple network architecture can no longer meet the rapid growth.The network traffic seriously affected the quality of transmission services.Based on the research background of the national high-performance computing environment,this paper proposes a new Internet environment multi-data SCs(supercomputing centers)traffic scheduling model,using the Overlay network to build a fully controllable virtual network for traffic scheduling,and improving the underlying network protocol and routing update algorithm.Use forwarding nodes for traffic scheduling between end nodes.This paper conducts experiments in an actual supercomputing environment,and the results show that the use of overlay network-based traffic scheduling in a cross-operator network environment can significantly reduce network transmission delay and increase transmission bandwidth.