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ZTE Communications ›› 2010, Vol. 8 ›› Issue (2): 1-6.

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Hierarchically Switched Networks

Qian Hualin, E Yuepeng   

  1. Computer Network Information Center of Chinese Academy of Sciences, Beijing 100190, P. R. China
  • Online:2010-06-25 Published:2020-02-27
  • About author:Qian Hualin is chief scientist, researcher, and doctoral tutor at the Computer Network Information Center of the Chinese Academy of Sciences. He is mainly engaged in researching network architecture, routing systems, and network security. He is also a subject consulting expert and China Next Generation Internet (CNGI) expert in the National Basic Research Program of China (also called“973”Program). Qian Hualin has held successive positions in several international Internet organizations including the Internet Corporation for Assigned Names and Numbers (ICANN), Asia-Pacific Network Information Centre (APNIC), Asia Pacific Top Level Domain Association (APTLD), and Chinese Domain Name Consortium (CDNC). He has presided over and participated in several major network projects, and is the first person to introduce the Internet into China and to construct the Chinese domain name system. He has won over 10 national and ministerial Science and Technology Progress Awards, and has published over 100 academic papers.

    E Yuepeng is a doctoral candidate at the Computer Network Information Center of the Chinese Academy of Sciences. He is mainly engaged in researching network architecture and transport layer congestion control.
  • Supported by:
    This work was funded by the National High Technology Research and Development Program of China (“863”Program) under Grant No. 2007AA01Z214.

Hierarchically Switched Networks

Qian Hualin, E Yuepeng   

  1. Computer Network Information Center of Chinese Academy of Sciences, Beijing 100190, P. R. China
  • 作者简介:Qian Hualin is chief scientist, researcher, and doctoral tutor at the Computer Network Information Center of the Chinese Academy of Sciences. He is mainly engaged in researching network architecture, routing systems, and network security. He is also a subject consulting expert and China Next Generation Internet (CNGI) expert in the National Basic Research Program of China (also called“973”Program). Qian Hualin has held successive positions in several international Internet organizations including the Internet Corporation for Assigned Names and Numbers (ICANN), Asia-Pacific Network Information Centre (APNIC), Asia Pacific Top Level Domain Association (APTLD), and Chinese Domain Name Consortium (CDNC). He has presided over and participated in several major network projects, and is the first person to introduce the Internet into China and to construct the Chinese domain name system. He has won over 10 national and ministerial Science and Technology Progress Awards, and has published over 100 academic papers.

    E Yuepeng is a doctoral candidate at the Computer Network Information Center of the Chinese Academy of Sciences. He is mainly engaged in researching network architecture and transport layer congestion control.
  • 基金资助:
    This work was funded by the National High Technology Research and Development Program of China (“863”Program) under Grant No. 2007AA01Z214.

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Abstract: The Internet of today is facing serious challenges including lack of routing system scalability, unpredictable network behavior, uncertainty of data packet paths, poor control and manageability, unachieved Quality of Service (QoS), vulnerability of network facilities to Distributed Denial-of-Service (DDOS) attacks, core router complexity, costliness, and high power consumption. All of these defects have their root causes in the routing system. This paper first proposes a new network architecture which combines network typology with addressing. It then highlights that reliability of the tree structure is guaranteed by the concepts of logical node and logical link. Furthermore, shortcut link technology makes tree topology more flexible, and IP routing can be replaced with IP switching. As a result, all flaws in the current Internet architecture can be overcome.

摘要： The Internet of today is facing serious challenges including lack of routing system scalability, unpredictable network behavior, uncertainty of data packet paths, poor control and manageability, unachieved Quality of Service (QoS), vulnerability of network facilities to Distributed Denial-of-Service (DDOS) attacks, core router complexity, costliness, and high power consumption. All of these defects have their root causes in the routing system. This paper first proposes a new network architecture which combines network typology with addressing. It then highlights that reliability of the tree structure is guaranteed by the concepts of logical node and logical link. Furthermore, shortcut link technology makes tree topology more flexible, and IP routing can be replaced with IP switching. As a result, all flaws in the current Internet architecture can be overcome.