MDRUs

During the “great east Japan earthquake” on March 11, 2011, a lot of ICT resources were completely or partially damaged due to the tremor and the resultant tsunami. As a consequence, the demand for ICT services explosively increased, mainly because the people of the affected areas were trying to communicate with the outside world that led to a phenomenal rise in the network traffic. This gave rise to a serious traffic congestion, and the emergency ICT networks and services could not deal with this issue sufficiently.