A fast IP routing lookup scheme

Pi Chung Wang*, Chia Tai Chan, Yaw-Chung Chen

*Corresponding author for this work

Research output: Contribution to journalArticle

13 Scopus citations


A major issue in router design for the next generation Internet is the fast IP address lookup mechanism. The existing scheme by Huang et al. performs the IP address lookup in hardware in which the forwarding table can be compressed to fit into reasonable-size SRAM, and a lookup can be accomplished in three memory accesses. In this letter, we claim that with a little extra memory, it is able to further reduce the lookup time to two memory accesses.

Original languageEnglish
Pages (from-to)125-127
Number of pages3
JournalIEEE Communications Letters
Issue number3
StatePublished - 1 Mar 2001


  • Gigabit networking
  • IP address
  • Internet
  • Lookup

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    Wang, P. C., Chan, C. T., & Chen, Y-C. (2001). A fast IP routing lookup scheme. IEEE Communications Letters, 5(3), 125-127. https://doi.org/10.1109/4234.913161