TY - JOUR
T1 - High-Performance Optical Local and Metropolitan Area Networks
T2 - Enhancements of FDDI and IEEE 802.6 DQDB
AU - Karol, Mark J.
AU - Gitlin, Richard D.
PY - 1990/10
Y1 - 1990/10
N2 - The Fiber Distributed Data Interface (FDDI) and the IEEE 802.6 Distributed Queueing Dual Bus (DQDB) are emerging standards for high-speed (45–150 Mb/s) local and metropolitan area networks. In this paper, we describe several ways to build on these emerging standards to significantly increase the achievable throughput and lower the end-to-end delay. Without increasing the number of transceivers or their rate, substantial throughput increases are obtained by a highly concurrent logical interconnection pattern of user nodes, and the end-to-end delay is decreased by the use of more efficient media-access techniques. The most promising architecture is a multiconnected ring having only two transmitters and two receivers per node, where each node needs to handle or process only a small fraction of the network traffic. In one example, we describe a 24-node, distributed, packet-switched network, with only two 100-Mb/s transmitters and two 100-Mb/s receivers per node, that has a maximum throughput of 1.5 Gb/s—15 times the 100-Mb/s throughput of FDDI. Such a system has the potential to be a follow-on standard to FDDI (or IEEE 802.6) or to provide a high-performance LAN/MAN that can interwork with standard systems.
AB - The Fiber Distributed Data Interface (FDDI) and the IEEE 802.6 Distributed Queueing Dual Bus (DQDB) are emerging standards for high-speed (45–150 Mb/s) local and metropolitan area networks. In this paper, we describe several ways to build on these emerging standards to significantly increase the achievable throughput and lower the end-to-end delay. Without increasing the number of transceivers or their rate, substantial throughput increases are obtained by a highly concurrent logical interconnection pattern of user nodes, and the end-to-end delay is decreased by the use of more efficient media-access techniques. The most promising architecture is a multiconnected ring having only two transmitters and two receivers per node, where each node needs to handle or process only a small fraction of the network traffic. In one example, we describe a 24-node, distributed, packet-switched network, with only two 100-Mb/s transmitters and two 100-Mb/s receivers per node, that has a maximum throughput of 1.5 Gb/s—15 times the 100-Mb/s throughput of FDDI. Such a system has the potential to be a follow-on standard to FDDI (or IEEE 802.6) or to provide a high-performance LAN/MAN that can interwork with standard systems.
UR - http://www.scopus.com/inward/record.url?scp=0025507441&partnerID=8YFLogxK
U2 - 10.1109/49.62822
DO - 10.1109/49.62822
M3 - Article
AN - SCOPUS:0025507441
SN - 0733-8716
VL - 8
SP - 1439
EP - 1448
JO - IEEE Journal on Selected Areas in Communications
JF - IEEE Journal on Selected Areas in Communications
IS - 8
ER -