On Network System Evaluation Under Various Failures
Evaluating the scalability or performance of target technologies themselves is, of course, important, but studying their behavior in abnormal situations is also important for understanding problems with surrounding services and the target technology itself. Their system uses simulation and emulation in a large-scale test-bed to reproduce abnormal situations including router mis-configuration, wireless network faults, and severe congestion. Various experiments have been conducted using fault injection; here the authors present two case studies and their approach. They always have possibilities of being involved in various network troubles because of system mis-configurations and trouble by natural disasters, etc.