Appia is an open source layered communication toolkit implemented in Java, and licensed under the Apache License, version 2.0.
IBM Reliable Scalable Cluster Technology (RSCT) is a set of software components that together provide a comprehensive clustering environment for AIX, Linux, Solaris, and Windows operating systems.
Intermediate System to Intermediate System (IS-IS) is a routing protocol designed to move information efficiently within a computer network, a group of physically connected computers or similar devices.
JGroups is a library for reliable one-to-one or one-to-many communication written in the Java language.
In computer science, message queues and mailboxes are software-engineering components used for inter-process communication (IPC), or for inter-thread communication within the same process.
The QuickSilver project at Cornell University is an AFRL-funded effort to build a platform in support of a new generation of scalable, secure, reliable distributed computing applications able to "regenerate" themselves after failure.
The Spread Toolkit is a computer software package that provides a high performance group communication system that is resilient to faults across local and wide area networks.
In mathematics, a linear order, total order, simple order, or (non-strict) ordering is a binary relation on some set X, which is antisymmetric, transitive, and a connex relation.