Experiments with equivalent differentiated services in a grid context
- 作者：Primet ; Pascale Vicat-Blanc ; Echantillac ; Franois ; Goutelle ; Mathieu
- 关键词：Grid networking ; End-to-end performance ; Service differentiation ; Quality of service ; Adaptive packet marking ; EDS
- 刊名：Future Generation Computer Systems
- 出版年：2005
- 期刊代码：54_0167739x
- 类别：cp
- 出版时间：April, 2005
- 卷：21
- 期：4
- 页码：515-524
- 文件大小：289 K
摘要
Grids generally rely on a complex interconnection of Internet Protocol (IP) domains that offer heterogeneous services and unpredictable performance characteristics, particularly at the local area network/wide area network boundary. The total lack of end-to-end resource control in IP networks is responsible for performance problems that may affect the whole Grid environment. An end-to-end service differentiation architecture that controls heterogeneous communication performance is thus needed. We propose the Equivalent Differentiated Services (EDS) architecture, based on a layer-4 service differentiation solution exploiting a new layer-3 relative DiffServ model. In this paper, we present the EDS packet forwarding principles, the router mechanisms and two adaptive packet marking algorithms. As a proof of concept, we have implemented the EDS architecture in Linux and performed experiments on a transoceanic testbed.