Policy-based service level negotitation with COPS-SLS
نویسندگان
چکیده
Data streams in end-to-end communications can cross multiple network domains in which different QoS solutions are deployed. The provision of endto-end quality of service over heterogeneous environment assumes the negotiation of mutually acceptable SLA. The negotiation process gives the user the ability to specify the desired level of service, along with the permissible pricing of the service. This paper presents the use of COPS-SLS protocol for the negotiation of intra-, inter-domain and end-to-end QoS.
منابع مشابه
Analysis of Protocol Operations and Scalability of COPS-SLS Negotiation System
Dynamic service level negotiation is necessary to flexibly allocate resources according to QoS demands of a host or a domain. We have designed COPS-SLS as a service level negotiation protocol for IP-based networks. In this paper, we analyse a COPS-SLS-based negotiation system from the protocol design and system’s scalability perspectives. This analysis is useful not only to the improvement of t...
متن کاملSLS to DiffServ configuration mappings
This document addresses the problem of mapping Service Level Specifications (SLS) to IP Differentiated Services (DiffServ) configuration. We introduce a two step mapping controlled via a policy-based management system. The two step mapping includes the service specification to intra-domain service mapping (Per-Domain Behavior (PDB) [PDB-DEF]) and the further mapping to the DiffServ mechanism av...
متن کامل2.2.1 Exact Algorithms................................. 4
2 Background 2 2.1 NP-hard Combinatorial (Optimization) Problems . . . . . . . . . . . . . . . 2 2.2 Algorithms for Attacking COPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2.1 Exact Algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2.2 Non-Exact Algorithms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2.3 Comparison of the Tw...
متن کاملThe use of COPS and NSIS in the EuQoS Project
This paper discusses the use of the Policy Based Network paradigm, COPS (Common Open Policy Service) and NSIS (Next Steps In Signalling) frameworks being developed by the IETF, in the context of the European Project EuQoS (End-to-End Quality of Service over Heterogeneous Networks). An overview of the EuQoS architecture is provided followed by the analysis of the use of PBN/COPS and NSIS to supp...
متن کاملQoS Control by Means of COPS to Support SIP - Based Applications
The COPS protocol has been designed to enable communication on the interface between the policy decision administrator and the policy enforcement devices in a policy-based networking environment. It can be recognized that on the same interface there is the need to transfer information related to the request of resource by QoS clients and for the allocation of resources by resource allocation se...
متن کامل