NDLI: A fast table update scheme for high-performance IP forwarding

Content Provider	IEEE Xplore Digital Library
Author	Pi-Chung Wang Chia-Tai Chan Yaw-Chung Chen
Copyright Year	2001
Description	Author affiliation: Dept. of Comput. Sci. & Inf. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan (Pi-Chung Wang)
Abstract	The construction of routing tables has been studied extensively. Although existing work has certain advantages, it either uses complicated data structures which result in large storage requirements and high complexity for updating/building the forwarding table, or it is not scalable to fit in IPv6. Lampson et al. (1999) proposed an IP lookup algorithm which performs binary search on prefixes (BSP). The algorithm is attractive, even for IPv6, because of its bounded worst-case memory requirement. For achieving fast forwarding, the cost is the slowing down of insertion. Although this can be justified, the performance of routing-table reconstruction in BGP is too time-consuming to handle frequent route updates. We propose a fast forwarding table construction algorithm, which can handle more than 4,000 route updates per second. Moreover, it is simple enough to fulfil the need of fast packet forwarding. By using the modified multiway search tree, we can further reduce the depth of the tree and eliminate storage for pointers. This reduces the forwarding table size and shortens the lookup time.
Sponsorship	Korea Inf. Sci. Soc.
Starting Page	592
Ending Page	597
File Size	503092
Page Count	6
File Format	PDF
ISBN	0769511538
ISSN	15219097
DOI	10.1109/ICPADS.2001.934871
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-06-29
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Routing Hardware Data structures Internet Packet switching Switches Random access memory Laboratories Telecommunications Costs
Content Type	Text
Resource Type	Article
Subject	Hardware and Architecture

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