Implementation of the load balancing for multiple VPN server
This paper proposes a load balancing algorithm for multiple VPN equipments. According to the history flow data of each business node in a period, our algorithm calculates its statistical estimated flow, which is approximate to the real value. And then specifies a special server as a scheduling server. If a business node requests a VPN connection, first, it should communicate with the scheduling server. The scheduling server computed the current load of each VPN server, determines the VPN server the business node should connect, response the request business node with the VPN servers IP address. Finally, the node establishes a connection with the VPN server. Our algorithm not only considers the VPN servers own load condition but also the request business nodes flow fluctuations, trying best to avoid the situation that different nodes flow peak values superimpose in one VPN server at a special time. The experimental results show that our load balancing algorithm improves utilization rate as a whole; at the same time, it avoids the situation that in a period some of the VPN servers overload while others are in the idle condition.
VPN server load balancing flow
Zhe Zhang Ling Gao Hailin Xie Qili Tao
Dept.of Computer Science and Technology Northwest University Xian, P.R.China
国际会议
2010 International Conference on Educational and Network Technology(2010教育与网络技术国际会议 ICENT 2010)
秦皇岛
英文
147-150
2010-06-25（万方平台首次上网日期，不代表论文的发表时间）