Acta Metallurgica Sinica(English letters) ›› 2013, Vol. 20 ›› Issue (5): 22-29.doi: 10.1016/S1005-8885(13)60085-0

• Networks • Previous Articles     Next Articles

Reverse-trace routing scheme in content centric networking

  

  1. Key Laboratory of Universal Wireless Communications of Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2013-04-27 Revised:2013-08-16 Online:2013-10-30 Published:2013-10-29
  • Supported by:
    This work was supported by the National Basic Research Program of China (2011CB302901, 2012CB315801), and the Fundamental Research Funds for the Central Universities (2013RC0113).

Abstract: Content center networking (CCN) is one of the most promising future network architectures. Current researches on CCN routing scheme mainly focus on finding the best single routing path, which may induce to low usage of the in-network caches. In order to overcome this problem, a reverse trace routing (RTR) scheme is proposed in this paper, in which Interest packet is sent to the edge-cache along with the reverse trace of the corresponding former Data packet. By doing this, the Interest packets will have better chances to be routed to the promising in-network caches before reaching the source server, which could increase the in-network hit rate, while decrease the server stress. The simulation results show clearly that the RTR scheme decreases the source server load, while reducing the mean hops of entire data retrieval process under certain circumstances.

Key words: CCN routing, RTR, next face table (NFT)