Journal of Applied Sciences ›› 2016, Vol. 34 ›› Issue (6): 768-777.doi: 10.3969/j.issn.0255-8297.2016.06.012

• Computer Science and Applications • Previous Articles     Next Articles

Fast Topology Discovery for Campus Network

LI Xiao-ge1, WANG Hui1, ZHANG Bin2, QIN Dong-hong3   

  1. 1. Department of Automation and Control, Henan University of Animal Husbandry and Economy, Zhengzhou 450000, China;
    2. Research Institute No. 63, Nanjing 210007, China;
    3. School of Information Science and Engineering, Guangxi University for Nationalities, Nanning 530006, China
  • Received:2015-01-04 Revised:2016-06-02 Online:2016-11-30 Published:2016-11-30

Abstract:

To obtain the topology of a network,scan of the entire network is necessary, which is time consuming in practice. The time needed in finding topology is long especially for small-scale campus network where a large number of IP addresses do not respond to the “ping” message. To solve the problem,this paper proposes a fast topology discovery method without scanning the network,but only based on the address forwarding table. Using a hierarchical traversal strategy,the proposed algorithm discovers the topology by searching devices starting from the outer rim to the center. Simulation results show that the proposed method can deduce the connection of a network including up to 80 nodes in one minute. Performance and effectiveness of the method are verified in practical applications.

Key words: topology discovery, simple network management protocol, address forwarding table, address resolution protocol, router

CLC Number: