The NSIS QOS Model for Inter-domain Signaling to Enable End-to-End QoS Provisioning Over Heterogeneous Domains

This paper describes a NSIS QoS Model for inter-domain signaling (InterDomain-QOSM) between adjacent domains to enable endto-end QoS provisioning over heterogeneous network domains. Specifically, it assumes a distinct separation between the intra-domain control plane and the inter-domain control plane at each administrative domain and is intended to implement a common inter-domain control interface that allows the QoS negotiation and setup of inter-domain traffic streams while hiding the heterogeneity of intra-domain control mechanisms in use in a chain of heterogeneous network domains. The operation mode of the InterDomain-QoSM is first described and then the additional QSPEC parameters for fulfilling the common inter-domain interface are specified, followed by the illustrations of how the InterDomain-QOSM interacts with some typical intra-domain QoS models to achieve the end-to-end QoS provisioning over heterogeneous domains in a standardized and dy-