NDLI: Optimizing mobility support in large switched LANs

Content Provider	IEEE Xplore Digital Library
Author	Hristea, C. Tobagi, F.
Copyright Year	2003
Description	Author affiliation: Stanford Univ., CA, USA (Hristea, C.; Tobagi, F.)
Abstract	With the recent explosion in wireless mobile communication, a great deal of work is taking place to solve the problem of handling mobile users in the Internet. This problem encompasses the design of schemes for tracking and routing to mobile users in various networks and subnetworks that make up the Internet infrastructure. Switched LANs today employ the transparent learning protocol which allows switches to learn about the location of users by promiscuously listening to the traffic emitted by the users. Unfortunately, as this paper shows, fast moving users render the transparent learning protocol inefficient so that high bandwidth consumption and even packet loss may occur. To prevent packets from being mis-routed or even lost, one can employ a lightweight control-based mechanism for user tracking, based on an existing LAN-protocol known as the generic attribute registration protocol (GARP). However, this solution can lead to large databases at the switches, which can in turn significantly increase the cost of the Internet infrastructure. In this paper, we propose to combine and tune the transparent learning protocol and the GARP protocol in an efficient way as to jointly minimize packet loss, bandwidth consumption and the size of the tracking databases in a large switched network. Our optimization is shown to be effective for a wide range of mobility speeds and application characteristics, and consistent with the state of technology.
Starting Page	537
Ending Page	541
File Size	1482622
Page Count	5
File Format	PDF
ISBN	0780378024
DOI	10.1109/ICC.2003.1204234
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-05-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols Communication switching Internet Switches Bandwidth Databases Explosions Wireless communication Mobile communication Routing
Content Type	Text
Resource Type	Article

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