This chapter presents an analysis of current needs in the domain of Reconfigurable Network on chip. We first detail our motivations for NoC reconfiguration, which is followed by a description of our model for Reconfigurable Network on chip in relation with the usual OSI network layers. Then, we propose a study of outstanding research issues of current work and open issues organized into three topics: dynamic reconfiguration administration, network infrastructure reconfiguration and network protocol reconfiguration. To finish, we present our strategy for reconfiguration and introduce a self-adaptive Network Interface architecture as a part of the configuration manager.