Initiator-Domain-Based SLA Negotiation for Inter-domain QoS-Service Provisioning

The problem of providing quality of service (QoS) applications across multi-domain through service level agreement (SLA) negotiation is addressed in this paper. Nowadays, the IP network which can only provide best effort services can not fulfil customers´ QoS requirements, and SLA contract signed between service provider and service consumer is proposed to support QoS-based service offering. Service Provider (SP) separated from Network Provider (NP) acts as an independent entity in service provisioning, and needs to negotiate SLA with NP to attain network resource, which enables SP to provide QoS guaranteed services for customers. But in the current Internet, network domains are owned by different network operators and SP and customers may locate in different domains, which makes the SLA negotiation more complicated in QoS-Service provisioning. The initiator-domain-based SLA negotiation system is proposed to meet the negotiation problem.