NDLI: An Efficient Hardware-Based Multi-hash Scheme for High Speed IP Lookup

Content Provider	IEEE Xplore Digital Library
Author	Demetriades, S. Hanna, M. Sangyeun Cho Melhem, R.
Copyright Year	2008
Description	Author affiliation: Dept. of Comput. Sci., Pittsburgh Univ., Pittsburgh, PA (Demetriades, S.; Hanna, M.; Sangyeun Cho; Melhem, R.)
Abstract	The increasingly more stringent performance and power requirements of Internet routers call for scalable IP lookup strategies that go beyond the currently viable TCAM- and trie-based solutions. This paper describes a new hash-based IP lookup scheme that is both storage efficient and high performance. In order to achieve high storage efficiency, we take a multi-hashing approach and employ an advanced hashing technique that effectively resolves hashing collisions by dynamically migrating IP prefixes that are already in the lookup table as new prefixes are inserted. To obtain high lookup throughput, the multiple hash tables are accessed in parallel (using different hash functions) or in a pipelined manner. We evaluate the proposed scheme using up-to-date core routing tables and discuss how its key design parameters can be determined. When compared with state-of-the-art TCAM designs, our scheme reduces area and power requirements by 60% and 80% respectively, while achieving competitive lookup rates. We expect that the proposed scheme scales well with the anticipated routing table sizes and technologies in the future.
Starting Page	103
Ending Page	110
File Size	624947
Page Count	8
File Format	PDF
ISBN	9780769533803
ISSN	15504794
DOI	10.1109/HOTI.2008.27
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-08-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	IP networks Indexes Routing Entropy Throughput Hardware Titanium
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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