A SDN-based wired/wireless hybrid network architecture of cloud data center

The traditional wired network structure and fat-tree structure of the cloud data center are prone to single point of failure due to the linear structure. When the network scale of data center is expanded or upgraded, the adjustment of physical links is difficult and costly. With the development of wireless technology, a wireless network structure based on 60GHz millimeter wave and FSO has been proposed. However, the cost of wireless modules is relatively high and the physical location requirements are extremely high, so all-wireless data centers are difficult to promote. Wired/wireless hybrid network will be a better choice for data center network transformation at this stage. The management of hybrid networks is more difficult than wired networks, so this paper proposes A SDN-based Wired/wireless hybrid network architecture of cloud data center to realize centralized management and flexible scheduling of network resources, and intelligent operation and maintenance.