负载均衡在校园网的应用

Application of Load-balancing Technology in Campus Network

负载均衡是一种策略,可使多台网络设备在应用压力较大的时候,分流繁重的计算或I/O任务,从而提高系统整体性能,以确保网络的稳定运行。随着网络信息流量的指数级的增加,使得保护网络安全的防火墙成为网络使用的瓶颈并制约着网络的实际应用,以及影响网络的性能和扩展性。同时防火墙也可能成为整个网络系统的单一故障点,降低防火墙的可用性。负载均衡技术应用于两台以上的防火墙集群服务,采用自适应动态负载均衡方式,是提高防火墙的可用性、处理能力和吞吐量的一种适用而有效的方案。

Load-balancing is one of policy, using to transfer the burdened computing or I/O assignment, in order to enhance the entirety performance of firewall cluster system, ensure the stability of network. With the development of network and the exponential increase of information, firewaU gradually becomes the network choke point, restricts the practicality, affects the capability and expansibility. On the other hand, firewall may become the singularity malfunction-point of network, take from the usability. The application with auto-negotiation dynamic for load-balancing technology in firewall cluster, can solve and enhance the fire- wall＇ s availability, disposal ability, enhance the throughout.