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Proceedings Paper

Chip-set for quality of service support in passive optical networks
Author(s): Edwin Ringoot; Rudy Hoebeke; B. Hans Slabbinck; Michel Verhaert
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Paper Abstract

In this paper the design of a chip-set for QoS provisioning in ATM-based Passive Optical Networks is discussed. The implementation of a general-purpose switch chip on the Optical Network Unit is presented, with focus on the design of the cell scheduling and buffer management logic. The cell scheduling logic supports `colored' grants, priority jumping and weighted round-robin scheduling. The switch chip offers powerful buffer management capabilities enabling the efficient support of GFR and UBR services. Multicast forwarding is also supported. In addition, the architecture of a MAC controller chip developed for a SuperPON access network is introduced. In particular, the permit scheduling logic and its implementation on the Optical Line Termination will be discussed. The chip-set enables the efficient support of services with different service requirements on the SuperPON. The permit scheduling logic built into the MAC controller chip in combination with the cell scheduling and buffer management capabilities of the switch chip can be used by network operators to offer guaranteed service performance to delay sensitive services, and to efficiently and fairly distribute any spare capacity to delay insensitive services.

Paper Details

Date Published: 7 October 1998
PDF: 11 pages
Proc. SPIE 3531, All-Optical Networking: Architecture, Control, and Management Issues, (7 October 1998); doi: 10.1117/12.327050
Show Author Affiliations
Edwin Ringoot, Alcatel Alsthom Corporate Research Ctr. (Belgium)
Rudy Hoebeke, Alcatel Alsthom Corporate Research Ctr. (Belgium)
B. Hans Slabbinck, Alcatel Alsthom Corporate Research Ctr. (Belgium)
Michel Verhaert, Alcatel Alsthom Corporate Research Ctr. (Belgium)


Published in SPIE Proceedings Vol. 3531:
All-Optical Networking: Architecture, Control, and Management Issues
John M. Senior; Chunming Qiao, Editor(s)

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