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Control Protocols for Multigigabit-per-Second Networks
Emmanouel A. VARVARIGOS
IEICE TRANSACTIONS on Communications
Publication Date: 1998/02/25
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on ATM Switching Systems for future B-ISDN)
Category: Control and performance
high-speed networks, flow control, connection control,
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We present a collection of new network control protocols for high-speed networks that are geared to overcome some of the important drawbacks of existing protocols, namely (a) the inefficiencies of existing wait-for-reservation type of protocols for multigigabit wide area networks, (b) the implementation difficulties of credit-based flow control schemes, and (c) the packet resequencing problem of deflection-based schemes. Two of the protocols that will be outlined here were designed in the context of the DARPA sponsored Thunder and Lightning project, at the University of California, Santa Barbara, which is a continuing research effort to design and build a virtual-circuit switched, ATM-based, fiber optic network operating at link speeds of up to 40 Gb/s (see, for instance). The third protocol was designed in the context of MOST project, which is a project on (almost) all-optical switching supported by DARPA. All protocols achieve lossless transmission, efficient utilization of the capacity, and minimum pre-transmission delay for delay-sensitive traffic.