Transis: a communication subsystem for high availability

The authors describe Transis, a communication subsystem for high availability. Transis is a transport layer that supports reliable multicast services. The main novelty is in the efficient implementation using broadcast. The basis of Transis is automatic maintenance of dynamic membership. The membership algorithm is symmetrical, operates within the regular flow of messages, and overcomes partitions and remerging. The higher layer provides various multicast services for sets of processes.<
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