【摘 要】
：
The Internet today originates from the advanced research project agency network (ARPANET) and evolves constantly during the past years.However,with incremental
【机 构】
：
Key Laboratory of Universal Wireless Communication,China Unicom
论文部分内容阅读
The Internet today originates from the advanced research project agency network (ARPANET) and evolves constantly during the past years.However,with incremental patches on the Interaet,the current network architecture faces many problems which are too difficult to solve.In the light of recent interest in re-designing the Internet,the separation of core network and customer edge network,and the separation of identifier and locator receive wide consensus among scientists.We follow this direction and propose a new hierarchical network with diversified customer edge access (HNDCE) in this paper.We use switching addresses,routing addresses and identifiers to implement a true core/edge and locator/identifier split.In the core network,hierarchical switching addresses combined with tree topology makes routing replaced by switching.The Viliant load-balancing (VLB)structure is used here to compensate the topologys reliability and scalability.In the customer edge network,the split of locator and identifier makes it possible to deploy various routing schemes and new services.Hierarchical mapping system is also designed to support this new architecture.
其他文献
目的:研究肺癌患者肿瘤家族史中涉及亲属及所患肿瘤的分布情况;方法:回顾性分析我院1009-2006年间收治的肺癌患者肿瘤家族史资料,进行统计分析.结果:肿瘤家族史阳性肺癌患者
尿碘反应学龄儿童体内碘水平,在通常条件下,人体排出的碘等于摄入的碘,肾脏是碘的主要排泄器官,尿碘排泄量约占机体总碘排出量的85%～90%.由于一般以膳食调查的方式来计算碘的
通过室温抗弯强度、高温挠度、收缩率的测试以及SEM和XRD的分析,研究烧结温度对硅基陶瓷型芯性能的影响.性能测试表明:在1180～1400℃之间烧结,型芯收缩率随烧结温度升高不断增
近几年来，温州水土流失综合治理工作取得了显著成效，水土流失量逐年呈下降趋势，但水土流失状况依然严重，水土保持形势依然严峻。本文基于温州水土流失现状，通过水土流失成因分析，结
时下，城市绿化是城市建设理论研究的主要内容之一，是建设生态文明的重要载体，不仅关系到生态环境、发展环境、也关系到人与自然的和谐。目前有些城市新的绿化规划已出台并付诸实
A unity transformation model (UTM) was presented for flexible NC machining of spiral bevel gears and hypoid gears.The model can support various machining method
In network environments, before mean-ingful interactions can begin, trust may need to be established between two interactive entities in which an entity may ask
Nowadays, clear evaluation models and methods are lacking in classified protection of in-formation system, which our country is making ef-forts to promote. The
This article describes two kinds of model oil samples made of a benzothiophene/octane mixture and a 2-methylthiophene/octane mixture.Furthermore,this paper inve
It is widely believed that cooperative relay technologies can improve the throughput of multicasting in mobile cellular networks significantly,however,the mobil