(Introduction: IRF2 (IntelligentResilientFrameworkII, Intelligent Resilient Framework II) is a software virtualization technology developed by H3C. IRF2 allows multiple devices to be connected together to form an IRF2 stack including: IRF2 Overview IRF2 Basic Concepts IRF2 Election IRF2Merge and SplitIRF2 Conflict Detection and Failure Recovery IRF2 is mainly used)