一种基于智能弹性架构的纵向异构方案  

A Longitudinal Heterogeneous Scheme Based on Intelligent Resilient Framework

作　　者：张玉芳[1] 陈光礼[1] 熊忠阳[1] 严德汗[2] 

机构地区：[1]重庆大学计算机学院,重庆400044 [2]杭州华三通信技术有限公司北京研究所,北京100080

出　　处：《计算机工程》2014年第9期96-101,共6页Computer Engineering

摘　　要：针对交换网络中现有基础架构设计复杂、端口扩展受限、维护成本高等问题,提出一种基于智能弹性架构(IRF)技术的纵向异构方案。将多台低端交换机与IRF系统虚拟成一台逻辑设备,以增加逻辑设备的端口数量、简化管理,并降低大交换网络的构建成本。在网络拓扑层,采用跨板聚合技术将低端交换机与IRF系统之间的链路进行捆绑,对该链路上的流量实施负载均衡分担;在协议控制层,将低端交换机的系统控制管理平面上移,由IRF系统进行集中控制和网络决策管理。从可靠性、端口扩展、维护方面与现有方案进行对比分析,实验结果表明,该方案能解决现有方案中的不足,并以较低的成本提高端口密度。Aiming at the existing problems in the current network infrastructure,which have complex design,limited port expansion and high maintenance costs. This paper proposes a longitudinal heterogeneous technology scheme based on Intelligent Resilient Framework（IRF）virtualization technology. This scheme virtualizes several low-end switches and IRF system into a single logical device. On one hand,the numbers of ports of the logic device are increased,meanwhile it is sampler to manage for big switching network. On the other hand,the scheme reduces the cost of building big switching network. In the plane of network topology,multiple longitudinal links between low-end switch and IRF system are bound to a logic link by LACP technology,and the traffic can be balanced sharing among them. In the plane of protocol control,the system control and management pane of the low-end switch is shifted up,and it is centrally controlled and decided by IRF system. Finally,the paper analyzes the reliability,traffic load balancing,expansion and maintenance with the existing schemes. Experimental results show the scheme can solve the shortcomings of the existing schemes,and enhance the port density with lower costs.

关 键 词：智能弹性架构 纵向异构 低端交换机 负载分担 可靠性 端口密度 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]