On the Constant Diagnosability of Baseline Interconnection Networks

A novel approach for the diagnosis of baseline interconnection networks with a fan-in/fan-out of 2 is presented. The totally exhaustive combinatorial fault model with single fault assumption is used in the analysis. Some new characteristics of baseline interconnection networks are proved. A characterization for the fault location and the fault type of the one-response fault are given. This characterization is used in proving that baseline interconnection networks with fan-in/fan-out of 2 can be diagnosed with a constant number of tests independent of the network size. The maximum number of tests is 12. >