Method and apparatus for maintaining a dynamic logical ring in a

Details Method and apparatus for maintaining a dynamic logical ring in a Method and apparatus for maintaining a dynamic logical ring in a

1985-05-13

1987-03-10

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 89, H04J 316

Patent

active

046495355

ABSTRACT:
Method and apparatus is disclosed for maintaining a dynamic logical ring in a token passing local area network such that each bus interface unit coupled to the network can freely and unilaterally initiate participation therein by monitoring the transmission bus until it is not busy and, thereafter, transmitting a solicit successor packet to initiate entrance to the ring. Further, method is disclosed for re-establishing the ring after a bus interface unit fails or a token is destroyed. Lastly, method and apparatus is disclosed for establishing the logical ring after initialization.

REFERENCES:
patent: 4058681 (1977-11-01), Imaizumi
patent: 4491946 (1985-01-01), Kryskow, Jr. et al.
patent: 4494233 (1985-01-01), Bahr et al.
patent: 4506360 (1985-03-01), Kryskow, Jr. et al.
patent: 4507777 (1985-03-01), Tucker et al.
patent: 4511958 (1985-04-01), Funk

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