Multi-channel ring architecture for distributed networks

Details Multi-channel ring architecture for distributed networks Multi-channel ring architecture for distributed networks

1989-06-06

1990-08-07

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

H04L 1200

Patent

active

049473891

ABSTRACT:
The present invention relates to a high speed, multihop, Local Area Network (LAN) comprising a communications medium for supporting a plurality of channels therealong and a plurality of Network Interface Units (NIUs) disposed along the medium in a predetermined sequence. Each channel of the communications medium comprises one or more point-to-point communication links, and each NIU is arranged to transmit to, or receive from, at least two other NIUs using point-to-point links from a separate subset of the multiple channels. Several of the NIUs are also arranged to transmit to, or receive from, additional NIUs on the network using (i) point-to-point links from a separate subset of the channels and, (ii) a non-linear connection pattern. Each channel can be used to establish point-to-point links between several pairs of NIUs in nonoverlapping sections of the sequence of NIUs. Communications between two NIUs is accomplished either directly, by a point-to-point link interconnecting the two NIUs, or by hopping the packet through a small number of intermediate NIUS.

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patent: 4875207 (1989-10-01), Van Twist et al.
"Analysis of a Chordal Ring Network", IEEE Trans. on Computers, vol. C-30, No. 4, Apr. 1981, B. W. Arden et al., pp. 291-295.
"PHILAN: a Fiber-Optic Ring for Voice and Data", IEEE Communications Magazine, vol. 24, No. 12, Dec. 1986, J. R. Brandsma et al., pp. 16-22.
"Terabit Lightwave Networks: The Multihop Approach", AT&T Technical Jnl., vol. 66, Issue 6, Nov./Dec. 1987, A. S. Acampora et al., pp. 21-34.

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