Self-healing drop and insert communication network

Details Self-healing drop and insert communication network Self-healing drop and insert communication network

1993-05-18

1994-07-26

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

34082503, 371 112, H04J 314

Patent

active

053331303

ABSTRACT:
A self-healing drop/insert (D/I) communication method and network are provided. The network comprises two end stations and a chain of intermediate D/I multiplexer stations to which the two end stations are connected by two lines, so as to provide communication in both directions, East and West, for multiple data and/or voice channels between any of the stations. According to the invention, the end stations are collocated or located near one another and in the event of a break or failure in the network, they are interconnected to form one D/I multiplexer station, whereas the stations on each side of the break or failure become new end stations. The communication transmitted by the multiple data and/or voice channels is then redirected away from the point of break or failure, when it occurs, thereby allowing the network to self-heal and remain operational after the break or failure.

REFERENCES:
patent: 4509117 (1985-04-01), Korowitz
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patent: 4815069 (1989-03-01), Nakayashiki et al.
patent: 5146452 (1992-09-01), Pekarske
patent: 5159595 (1992-10-01), Flanagan et al.
"A Class of Self-Healing Ring Architectures for SONET Network Applications", T. Wu et al, IEEE Transactions on Communications, vol. 40, No. 11, Nov. 1992, pp. 1746-1756.

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