Patent ID: 6748438
Filing Date: 2004-06-08
Classification: H04L

Abstract:
A method of determining access among multiple active nodes to a passive node in a multiprocessing system, the system including a communications network interconnecting the passive node and the active nodes, the method comprising:a first node of the active nodes transmitting a predetermined invocation message to all other active nodes; each of the active nodes receiving the invocation message, in response thereto, conducting a predetermined membership protocol including one or more intervals in which each active node initiates an exchange of membership views with the active nodes, each active node initiates acquisition of a membership view from the passive node, and each active node submits a subscription to the passive node, where each active node repeatedly updating its membership view between intervals and performing a new interval until the active node's membership view satisfies a predetermined protocol-termination condition guaranteeing asymmetric safety among the active nodes.