PCP: a bandwidth guaranteed transport service for IP networks
PCP: a bandwidth guaranteed transport service for IP networks
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PCP：IP 网络的带宽保证传输服务
DOI：
10.1109/icc.1999.768021
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
C. Petrioli
中科院分区：
文献类型：
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作者：
F. Borgonovo;A. Capone;L. Fratta;M. Marchese;C. Petrioli
对具有不同且可能严格的QoS要求的各种新的因特网服务（即因特网电话、视频会议等）的需求不断增加。需要设计支持QoS保证的机制。目前IETF、RSVP（资源预留协议）和区分服务提出的解决方案虽然适用于许多应用，但可能导致在呼叫基础上支持实时服务的效率低下。RSVP不是真正可扩展的，并且需要在互联网架构中进行实质性的改变，而差异化服务主要在静态和永久的基础上提供保证。在本文中，我们假设一个互联网体系结构，支持多个优先级所需的区分服务，并介绍了PCP（幻影电路协议），一种机制，提供了一个有保证的带宽传输服务面向电路的连接。PCP包括完全可扩展的呼叫准入控制（CAC），并在每个呼叫的基础上运行。在各种网络条件下的CBR（恒定比特率）业务的协议性能的仿真表明，该机制的理论预期的坚持。
The increasing demand for a variety of new Internet services with different and possibly stringent QoS requirements (i.e. Internet telephony, videoconferencing etc.) requires the design of mechanisms to support QoS guarantees. The current solutions proposed in IETF, RSVP (Resource reSerVation Protocol) and differentiated services, though suitable for many applications, may result inefficient to support real-time services on a call basis. The RSVP is not really scalable and requires substantial changes in the Internet architecture, while differentiated services provide guarantees mostly on a static and permanent basis. In this paper we assume an Internet architecture supporting multiple priorities as needed in differentiated services, and introduce the PCP (phantom circuit protocol), a mechanism that provides a guaranteed bandwidth transport service for circuit oriented connections. The PCP includes a fully scalable call admission control (CAC) and operates on a per call basis. Simulation of the protocol performance for CBR (constant bit rate) traffic under various network conditions show the adherence of the mechanism to theoretical expectations.