Lucent Technologies Inc.

Ruibing Hao

David Y Lee

Rakesh Kumar Sinha

Dario Vlah

A method of generating a set of test sequences for evaluating interoperability of a number of interconnected communication systems with respect to a desired mode of communication between a first end user and a second end user. A number of operational states that are required of the communication systems to implement the desired mode of operation between the two end users is determined, wherein each state pertains to a first operation of a first gateway system associated with the first end user and a corresponding second operation of a second gateway system associated with the second end user. The interconnected communication systems are tested by causing the systems to perform specified transitions between pairs of at least some of the operational states.

Generation of test suites for interoperability of reactive communication systems

A network router is tested for operation according to a given network protocol, by coupling the router under test (RUT) to a test host device and arranging the device to simulate operative test network topologies which include router nodes, network nodes, and edges between the nodes. The device exchanges information packets with the RUT for each of a number of successive test network topologies. Each successive topology is determined randomly by inserting or deleting an edge or a node to or from a prior test network topology in a probabilistic manner. Operation of the RUT under the given protocol is evaluated based on the exchanged information packets. A judgment, e.g., a fault or a no-fault condition, is rendered by the host device.

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Scotch Plains, NJ, United States of America

Ruibing Hao