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An architecture of QoS services for a core Internet network over DTM

机译：通过DTM的核心Internet网络的QoS服务体系结构

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The differentiated services (DiffServ) model brings the flexibility of the definition of a variety of QoS services through PHBs (per hop behaviour) and traffic conditioners. It integrates gracefully with the integrated services (IntServ) model, that can have functions of QoS signalling, admission control, channel management, resource estimation and dynamic traffic contract agreement. With this integration we can have a scalable, flexible and dynamic IP core QoS environment. The transport network and switching solution used in the architecture proposed, DIPQoS (DTM IP QoS) architecture, is the DTM, a fast circuit switching technology. It is simple, cost effective and have attractive QoS performance. Four simplex services are defined in DIPQoS: the DSG (DTM strict guarantee), that guarantees the signalled peak rate and delay tolerance; the DGF (DTM guaranteed forwarding), that guarantees a minimum forwarding of packets based on pre-signalled QoS specifications and SLAs (service level agreements) between customer and provider. Another one is the DLF (DTM loose forwarding) that provides a loose forwarding of the packets based on discard priorities and also on guaranteed pre-signalled QoS specifications and SLAs. The last one is the DBE (DTM best effort), like the traditional Internet service, there is not QoS support. The purpose of this paper is to present a functional architecture of QoS services based on DiffServ and IntServ models for a core Internet network over the DTM technology.
机译：区分服务（DiffServ）模型通过PHB（单跳行为）和流量调节器带来了定义各种QoS服务的灵活性。它与集成服务（IntServ）模型很好地集成在一起，该模型可以具有QoS信令，准入控制，通道管理，资源估计和动态流量合同协议的功能。通过这种集成，我们可以拥有一个可扩展，灵活和动态的IP核心QoS环境。在提议的体系结构DIPQoS（DTM IP QoS）体系结构中使用的传输网络和交换解决方案是DTM，一种快速的电路交换技术。它简单，具有成本效益并具有吸引人的QoS性能。 DIPQoS中定义了四种单工服务：DSG（DTM严格保证），它保证信号峰值速率和延迟容限; DGF（DTM保证转发），它基于客户和提供者之间预先签署的QoS规范和SLA（服务水平协议），保证对数据包的最小转发。另一个是DLF（DTM松散转发），它基于丢弃优先级以及保证的预信令QoS规范和SLA，提供数据包的松散转发。最后一个是DBE（尽力而为DTM），就像传统的Internet服务一样，没有QoS支持。本文的目的是为基于DTM技术的核心Internet网络提供基于DiffServ和IntServ模型的QoS服务的功能体系结构。

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