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Space Internet technology is the Internet that refers to technology which is widely used in the terrestrial network,
improved under the space communications feature, thus using the improved Internet protocols and technology, to meet
the needs of future space mission technology. In protocol engineering area, conformance testing is a very important step.
The purpose of conformance testing is to determine to what extent a single implementation of a particular standard
conforms to the individual requirements of that standard. Conformance testing can increase the confidence level of
implementation complying with the protocol specification, and enhance the probability of interoperability between
different implementation. The ISO/IEC9646 standard described by ISO is the maturest theory in protocol conformance
testing theories. Space communication network test framework is proposed, in which the test architecture is defined for
conformance testing to space communication network. In this paper, the ISO9646 standard is improved, in order to meet
the requirements of conformance testing of space communication network. The contribution of this paper is the
proposition of a complete method to the design of conformance testing against space communication network. The
simulation results have shown that the method has better test results, to meet the space communications network testing
needs. With the testing of the space communications network protocol implementation, we discovered the problems of
the protocol implementation. It has verified the theory and method.
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