Network control arrangement for processing a plurality of connec

Details Network control arrangement for processing a plurality of connec Network control arrangement for processing a plurality of connec

1989-05-08

1991-02-12

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 581, 340826, 379272, H04Q 1100

Patent

active

049930168

ABSTRACT:
A network control arrangement where two or more path hunt operations are performed in parallel using one or both of two techniques: (1) reading a memory for a second path hunt operation during the time that information read from the memory for a first path hunt operation is being processed to select a path, and (2) maintaining duplicate memories and reading from them both to perform two path hunt operations before either memory is updated. A disjoint path check unit rapidly determines whether all of the network paths from a first inlet to a first outlet are disjoint from all of the network paths from a second inlet to a second outlet. Plural path hunts are performed only when all network paths from the first inlet to the first outlet are determined to be disjoint from all network paths from the second inlet to the second outlet.

REFERENCES:
patent: 4005272 (1977-01-01), Collins et al.
patent: 4038497 (1977-07-01), Collins et al.
patent: 4621357 (1985-11-01), Naiman et al.
patent: 4686669 (1987-08-01), Chang
A. Feiner et al., "No. 1 ESS Switching Network Plan", The Bell System Technical Journal, vol. XLIII, Sep. 1964, No. 5, Part 2, pp. 2193-2220.
W. Ulrich, "No. 1 ESS Network Sequences and Program", Electronic Switching Symposium, 1963, pp. 14-1-14-13.

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