Conformance testing in network engineering is a crucial phase in the development of complex communicating systems. Model-based testing allows to automatize the testing process by generating test suites from a formal specification and to execute them on a real IUT. While many techniques have been developed, their application to test wireless routing ad-hoc protocols still raises many issues. The paper objective paper is to present the node self-similarity reducing the number of inconclusive verdicts often met in traditional MBT