NeTS-NR: Networks with Extended Quality of Service using Service Vectors

除了互联网流量的增长外，新的应用和服务也提出了各种各样的要求。与此同时，视频、音频、商业服务和其他数据服务上的网络应用的出现产生了将大多数业务与定义的服务质量(Qos)保证相结合的迫切需求。新兴网络需求的例子与可靠性、可恢复性和安全性直接相关。虽然这些要求中的大多数在最近几年已经引起了研究兴趣，但如何将它们整合到下一代网络中仍然不清楚。为了管理日益多样化的服务质量需求，本研究项目提出了一种新的服务模型概念，称为服务向量，作为为各种业务类别提供服务质量支持的解决方案。这一概念有望帮助实现以下目标：a)能够支持精细的Qos粒度的健壮的区分服务模型；b)可伸缩性；c)满足用户定制的端到端需求；d)提高网络运营商的收入；e)提高当前DiffServ网络模型的利用率。研究了服务向量在下一代网络中的复杂性和可行性，并考虑了在新一代路由器和部署路由器中实现服务向量对路由器体系结构和部署问题的影响。

In addition to the traffic growth in the Internet, new applications and services are imposing a large variety of requirements. At the same time, the emergence of network applications on video, audio, business services, and other data ser-vices is creating an imminent demand for integration of most traffic with de-fined quality of service (QoS) guarantees. Examples of emerging network re-quirements are directly related to reliability, recoverability, and security. Al-though most of these requirements have kindled research interests in recent years, it is still unclear how to integrate them for next generation networks. To manage the increasing variety of QoS requirements, this research project pro-poses a new service model concept, called service vector, as a solution for pro-viding QoS support for a large variety of traffic classes. This concept is expected to help achieving the following objectives: a) robust differentiated service model capable of supporting fine QoS granularity; b) scalability; c) satisfaction of the users' customized end-to-end requirements; d) improved network operator revenue; e) higher utilization of the current Diffserv network model. The com-plexity and feasibility of service vectors for the next generation networks is in-vestigated, and the impact on router architectures and deployment issues are considered for the implementation of service vectors in new-generation and de-ployed routers.