Research and Implementation of Architecture of Cluster based Scalable Network Services

On the analysis of present and future network service requirements, we present the architecture of cluster based scalable network services called Linux Virtual Server, which has three tiers of load balancer, server pool and backend storage. The load balancer supports IP load balancing and content based request distribution techniques. The LVS cluster provides load balancing, scalability and availability, which can be deployed to build many scalable network services. We give a geographically distributed LVS clusters, which can save bandwidth, improve quality of network services and be disaster tolerant.