Abstract
Ethernet passive optical networks (EPONs) are being designed to deliver
multiple services and applications, such as voice communications, standard and
high-definition video (STV and HDTV), video conferencing (interactive video),
real-time and near-real-time transactions, and data traffic. To support these
applications with their diverse requirements, EPONs need to have class-of-service
(CoS) mechanisms built in. Here we investigate how the Multipoint Control Protocol
(MPCP)—an EPON transmission arbitration mechanism—can be combined with a strict
(exhaustive) priority scheduling that is a default scheduling algorithm specified in
the Institute of Electrical and Electronics Engineers (IEEE) 802.1D standard.
Specifically, packet delays for different classes of traffic are analyzed. We find
that the queuing delay for lower-priority classes increases when the network load
decreases (a phenomenon we call light-load penalty). We also suggest and analyze two
different optimization schemes that eliminate the light-load penalty.
© 2002 Optical Society of America
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription