Performance Optimized routing for SLA enforcement in cloud computing

Cloud computing has recently emerged as a new technology for hosting and delivering services over the Internet. The cloud service providers negotiate with their potential clients to sell computing power. The terms of the Quality of Service (QoS) and the economic conditions are established in a Service Level Agreement (SLA). There are many scenarios in which the agreed QoS cannot be provided. Since providers have usually different types of clients, according to their relationship with the provider or by the fee that they pay, it is important to minimize the impact of the SLA violations in preferential clients. Here, in the proposed system, a Performance Optimized routing technique is used by the Cloud Broker. The Broker decides which datacenter should provide the service to user requests. The QoS requirements of high priority clients can be satisfied by the routing technique. Hence, SLA enforcement can be achieved by the proposed system.