Protocol for inter-processor dialog over a communication network

Details Protocol for inter-processor dialog over a communication network Protocol for inter-processor dialog over a communication network

1980-06-30

1983-03-15

Ruggiero, Joseph F.

Boots, shoes, and leggings

364200, G06F 304

Patent

active

043769829

ABSTRACT:
A communication system includes a plurality of requestors and a plurality of responders representing resources. A protocol exercised by all elements provides accurate and consistent interconnection of all elements in a system where messages may be delayed or lost. Requestors are provided with means to transmit a request for use of a plurality of resources, respond to acceptances from one or more responders and create a cooperative relationship by transmitting a confirmation to one responder and cancellation of the request to all other responders. Responders become committed to a requestor by signalling an acceptance to a request if a previous acceptance has not been transmitted, or if the resource is not already committed to another requestor, and a subsequent confirmation signal is received. The responder does not become committed after transmitting an acceptance if the next signal directed to it from the requestor is a request cancellation. Request signals and cancellation signals by a requestor can either be broadcast simultaneously to all responders of a class or transmitted to particular, designated responders, one at a time.

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