An efficient congestion control scheme for providing QoS to I-VPN

摘要

In this paper we outline an overall network architecture for the Internet Service Providers who want offer an Internet-Virtual Private Network service with Quality of Service guarantees and, at the same time, with a high-level of efficiency in the network resource usage. The proposed approach is based on the negotiation of a service level agreement, which includes the definition of profile of traffic the user is allowed to emit. The ingress nodes perform an adaptive shaping of the user traffic entering the network, driven by a fast congestion notification scheme. In this scenario, the adoption of a service architecture based on a class-of-service concept enables the Internet Servcie Provider to offer different level of network performance. according to the customer needs.