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A CENTRALIZED MODEL FOR ESTABLISHING END-TO-END COMMUNICATION SERVICES VIA MANAGEMENT AGENTS

机译：通过管理代理建立端到端通信服务的集中模型

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This paper presents a centralized approach for establishing end-to-end communication services via management agents. The main proposal is the modular architecture of the third-party based Service Establishment Agent (SEA). The SEA manages inter-provider service negotiation process with per-domain management agents through an appropriate signaling agent. It also receives and interprets end-to-end service requests, selects inter-domain paths, performs mapping of service classes among domains on the path, and evaluates conformance of the offered service level with the required one. It allows implementation of different algorithms for the aforementioned functions as well as their selection and combination according to the predefined management policies. Simulation results show that the proposed model significantly outperforms the distributed model in terms of service negotiation times. In the prototype development process, a policy-based solution for mapping of service classes was implemented. The performance evaluation shows that processing requirements for handling multiple service requests are modest, while benefit of the SEA approach is the lack of need to build long-term consensus among providers about technical choices for achieving network interconnection. The SEA architecture is completely independent of the quality of service mechanisms available in particular domains.
机译：本文提出了一种通过管理代理建立端到端通信服务的集中式方法。主要建议是基于第三方的服务建立代理（SEA）的模块化体系结构。 SEA通过适当的信令代理与每个域管理代理一起管理提供商间服务协商过程。它还接收并解释端到端服务请求，选择域间路径，在路径上的域之间执行服务类别的映射，并评估所提供服务级别与所需服务级别的一致性。它允许实现用于上述功能的不同算法，以及根据预定义的管理策略选择和组合它们。仿真结果表明，该模型在服务协商时间方面明显优于分布式模型。在原型开发过程中，实现了基于策略的服务类映射解决方案。性能评估表明，处理多个服务请求的处理要求不高，而SEA方法的好处是，无需在提供商之间就实现网络互连的技术选择建立长期共识。 SEA体系结构完全独立于特定域中可用的服务质量机制。

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