METHODS AND APPARATUS FOR ENABLING LIVE VIRTUAL MACHINE (VM) MIGRATION IN SOFTWARE-DEFINED NETWORKING NETWORKS

摘要

A software-defined networking (SDN) controller communicatively coupled with a cloud orchestrator enables live migration of a virtual machine from a first network device to a second network device. The SDN controller receives from the cloud orchestrator an indication that migration of the virtual machine is to be initiated. In response to receiving the indication, a third network device is caused to forward flows towards the first network device by passing through the second network device. The SDN controller transmits to the cloud orchestrator an indication that the migration of the virtual machine can be performed, causing the cloud orchestrator to complete the migration of the virtual machine to the second network device. In response to the migration of the virtual machine, the second network device processes the flows locally instead of forwarding them to the first network device.