WANG Li-sheng, YI Peng, HU Tao, et al. Adaptive Flow Balancing Algorithm Based on Global Topology Awareness in SDN[J]. Acta Electronica Sinica, 2021, 49(5): 964-974.
WANG Li-sheng, YI Peng, HU Tao, et al. Adaptive Flow Balancing Algorithm Based on Global Topology Awareness in SDN[J]. Acta Electronica Sinica, 2021, 49(5): 964-974. DOI: 10.12263/DZXB.20190989.
An adaptive flow balancing algorithm is proposed for the Packet_In transmission bottleneck caused by the limited control link performance between the control plane and the data plane in software-defined networking (SDN). The control plane of the SDN network has the characteristics of having a global topology and real-time status of switches
therefore we solve the bottleneck problem of the uplink control link by using thresholds to control the starting and ending conditions of flow balancing and redirecting flow in overloaded switch to neighbor switch. Compared with the existing methods
the upload control link load is reduced by 33% and packet loss rate of Packet-In massage is reduced by 50%