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Proceedings Paper

Hardware implementation of a signaling protocol
Author(s): Haobo Wang; Malathi Veeraraghavan; Ramesh Karri
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Paper Abstract

Signaling protocols in switches are primarily implemented in software for two important reasons. First, signaling protocols are quite complex with many messages, parameters and procedures. Second, signaling protocols are updated frequently requiring a certain amount of flexibility for upgrading field implementations. While these are two good reasons for implementing signaling protocols in software, there is an associated performance penalty. Even with state-of-the-art processors, software implementations of signaling protocol are rarely capable of handling over 1000 calls/sec. Correspondingly, call setup delays per switch are in the order of milliseconds. Towards improving performance we implemented a signaling protocol in reconfigurable FPGA hardware. Our implementation demonstrates the feasibility of 100x-1000x speedup vis-a-vis software implementations on state-of-the-art processors. The impact of this work can be quite far-reaching by allowing connection-oriented networks to support a variety of new applications, even those with short call holding times.

Paper Details

Date Published: 3 July 2002
PDF: 12 pages
Proc. SPIE 4874, OptiComm 2002: Optical Networking and Communications, (3 July 2002); doi: 10.1117/12.475295
Show Author Affiliations
Haobo Wang, Polytechnic Univ. (United States)
Malathi Veeraraghavan, Polytechnic Univ. (United States)
Ramesh Karri, Polytechnic Univ. (United States)

Published in SPIE Proceedings Vol. 4874:
OptiComm 2002: Optical Networking and Communications
Nasir Ghani; Krishna M. Sivalingam, Editor(s)

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