By Topic

Efficient Gray-Code-Based Range Encoding Schemes for Packet Classification in TCAM

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Yeim-Kuan Chang ; Dept. of Comput. Sci. & Inf. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan ; Cheng-Chien Su ; Yung-Chieh Lin ; Sun-Yuan Hsieh

An efficient ternary content addressable memory (TCAM) encoding scheme using a binary reflected Gray code (BRGC) and the concept of elementary intervals is presented for efficiently storing arbitrary ranges in TCAM. The proposed layered BRGC range encoding scheme (L-BRGC) groups ranges into BRGC range sets in which each range can be encoded into a single ternary vector. The results of experiments performed on real-life and synthesized rule tables show that L-BRGC consumes less TCAM than all the existing range encoding schemes for all rule tables, except that the direct conversion scheme (EIGC) using elementary intervals and BRGC codes performs best for a small real-life ACL rule table.

Published in:

Networking, IEEE/ACM Transactions on  (Volume:21 ,  Issue: 4 )