RMTE: Robust modular traffic engineering in software-defined data center networks

Failing to make use of multi-path advantages in data center networks (DCNs) has confined accessible resources and increased the possibility of congestion. In this paper, we have presented a new algorithm for traffic engineering (TE) in a modular mode. In the proposed algorithm, the less loaded paths for conduction of current are selected with regard to the present conditions as soon as a current is generated between two hosts, their position is identified in the DCN, and the paths between the two are obtained. Results achieved from the Mininet emulator indicate that the performance of the RMTE method is, on average, 2.3 times better than the algorithm dominantly applied in Equal Cost Multi-Path (ECMP) data centers (DC) respecting improved degrees of efficiency of network links. However, the time during which data is read from OpenFlow switches imposes overflow on the system.