Software Defined Network

Here it is described a study of possibilities to build up and test the performance of the software defined network
(SDN) segments. The applicability of the SDN for data centers and the distributed storage systems. We describe
experiments on stress testing of the storage area networks with the use of NOX controller and various software
and hardware OpenFlow switches. A check on the possibility of processing bulk client requests, measured
response delay, carried out experiments to simulate the operation of data center with 64 switches and 100
thousands hosts. The comparative results of the effectiveness of specific mechanisms implementing QoS are
presented. The main problems of existing implementations of OpenFlow SDN components identified during the
work and recommendations on possible ways to address them are described.