Patent ID: 9455916
Filing Date: 2016-09-27
CPC Classification: H04L,H04W

Claim Text:
1. A method for changing a transmission path of packets transmitted from a first node to a second node in a network, the method comprising: after a plurality of first data packets intended to be transmitted to the second node are transmitted from the first node by a plurality of relay nodes of a first transmission path according to the first transmission path, removing a flow entry corresponding to the first transmission path on a flow table of the first node by a controller, wherein the network has a control plane and a data plane, and the controller is disposed in the control plane; transmitting a flush packet to the first node and setting the flush packet to be transmitted to the second node according to the first transmission path by the controller; and when the second node receives the flush packet and transmits a packet inquiry message corresponding to the flush packet to the controller, setting a flow entry corresponding to a second transmission path on a flow table of the second node by the controller.