The invention particularly relates to a dynamic
bandwidth sharing management method based on
OpenFlow. According to the dynamic
bandwidth sharing management method based on the
OpenFlow, an
intranet switch guides out-of-network traffic of a
virtual machine to an
OpenFlow node, and it is ensured that all out-of-
station traffic passes through a control platform subjected to
centralized management; the OpenFlow controller monitors and analyzes the flow in real time, and limits the flow through IP matching by using a set flow table; the OpenFlow node carries out mutual conversion on the flow of the
intranet and the flow of the
extranet and applies a corresponding QoS strategy; and the internal network core switch sends the processed flow to the target
virtual machine to realize flow control of QoS (
Quality of Service). According to the dynamic
bandwidth sharing management method based on OpenFlow, it can be ensured that key services obtain necessary bandwidth support, meanwhile, the operation cost of a user is reduced, the
network management process is simplified, efficient sharing and cooperation of resources are promoted, the
bandwidth management capacity in a
cloud computing environment is improved, the elasticity and expandability of a
system are enhanced, and the dynamic bandwidth sharing management method based on OpenFlow can be applied to the
cloud computing environment. And ever-increasing
business requirements can be met.