摘要
基于前期工作——可信可控网络体系结构TCNA(trustworthy and controllable network architecture),提出了一种QoS资源控制模型(resource control model for QoS,简称RCMQ).该模型从网络可控角度将QoS控制分为4层:QoS决策层面、QoS观测层面、QoS接口层面和QoS资源层面,模型部署包括独立集中的域内控制和一致性分布式控制.RCMQ模型闭环控制结构保证了QoS控制的有效性,而独立集中的QoS决策层面使得模型具有可扩展性.最后,通过仿真实验验证了RCMQ资源控制模型与InterServ模型相比,能够提供更为稳定的QoS传输,并且极大地减少了QoS状态维护,同时也从侧面说明可信可控网络体系比传统TCP/IP网络具有更高的可控性.
In this article, a Resource Control Model for QoS （RCMQ） is presented, based on the former work onTrustworthy and Controllable Network Architecture （TCNA）. The QoS mechanisms are distributed into four logical planes in RCMQ： QoS decision plane, QoS discovery plane, QoS data plane, and QoS interface plane. Deployment of RCMQ includes independent and centralized resource control within an Autonomous System and consensus distributed control among ASes. RCMQ is scalable because it deeouples all network level QoS control mechanisms from the data plane, and it is robust because RCMQ is a simple and effective close loop control structure. Finally RCMQ in SSFNet environment are implemented, and experimental results show that RCMQ can provide a more stable QoS transmission and maintain fewer flow states than InterServ, which from the other point of view proves that TCNA is more controllable.
出处
《软件学报》
EI
CSCD
北大核心
2011年第11期2782-2794,共13页
Journal of Software
基金
国家自然科学基金(60903161
60903162
61003257
61070161
61070158)
国家重点基础研究发展计划(973)(2010CB328104)
高等学校博士学科点专项科研基金(200802860031)
江苏省自然科学基金(BK2008030)
江苏省网络与信息安全重点实验室资助项目(BM2003201)
计算机网络和信息集成教育部重点实验室资助项目(93K-9)
关键词
服务质量
可信可控网络体系结构
资源控制模型
quality of service （QoS）
trustworthy and controllable network architecture
resource control model
