Controlling packets of virtual machines

A virtual machine packet controlling method, applicable for a software defined network (SDN) controller, wherein the SDN controller is communicatively connected with an OpenStack network, the OpenStack network comprises an OpenStack controller node, an OpenStack compute node and a virtual network system, the virtual network system comprises a virtual machine (VM), and a virtual network apparatus responsible for forwarding packets of the virtual machine;

• the method comprising:
• after the OpenStack controller node creates a port for the VM, the SDN controller obtaining a port universally unique identifier (UUID) of the port created for the VM by the OpenStack controller node and a forwarding rule applied on the port;
• the SDN controller receiving from the OpenStack controller and saving a corresponding relationship between an port ID and the port UUID of the VM, wherein the OpenStack controller node receives from the OpenStack compute node the port ID of the VM retrieved by the OpenStack compute node, the port ID of the VM is allocated by the virtual network system according to a configured port group;
• the SDN controller generating a flow table according to the forwarding rule applied on the port, and issuing the flow table to the virtual network apparatus according to the corresponding relationship.

A virtual machine packet controlling apparatus, applicable for an OpenStack controller node of an OpenStack network, wherein the OpenStack network comprises an OpenStack controller node, an OpenStack compute node and a virtual network system, the OpenStack controller node is communicatively connected with a software defined network (SDN) controller, the virtual network system comprises a virtual machine (VM), and a virtual network apparatus responsible for forwarding packets of the virtual machine, the apparatus comprising:

• a port creation notifying module, to create a port for the VM, and inform the SDN controller of a port universally unique identifier (UUID) of the port created for the VM and a forwarding rule applied on the port;
• and
• a port update notifying module, to receive, after the OpenStack controller node creates the VM in the virtual network system, a port ID of the port of the VM retrieved by the OpenStack compute node, wherein the port ID of the port of the VM is allocated by the virtual network system according to a configured port group;
• transmit the port ID of the port UUID to the SDN controller, wherein the SDN controller generates a flow table according to the forwarding rule applied on the port, and issues the flow table to the virtual network apparatus according to the corresponding relationship.

A virtual machine packet controlling apparatus, applied in a software defined network (SDN) controller, wherein the SDN controller is communicatively connected with an OpenStack network, the OpenStack network comprises an OpenStack controller node, an OpenStack compute node and a virtual network system, the virtual network system comprises a virtual machine (VM) and a virtual network apparatus responsible for forwarding packets of the virtual machine;

• the apparatus comprising:
• a port creation notification receiving module, to obtain, after the OpenStack controller node creates a port for the VM, a port universally unique identifier (UUID) of the port created for the VM by the OpenStack controller node and a forwarding rule applied on the port;
• and
• a flow table generating module, to receive from the OpenStack controller node and save a corresponding relationship between a port ID of the port of the VM and the port UUID of the VM, wherein the OpenStack controller node receives from the OpenStack compute node the port ID of the VM retrieved by the OpenStack compute node, the port ID of the VM is allocated by the virtual network system according to a configured port group;
• generate a flow table according to the forwarding rule applied on the port, and issue the flow table to the virtual network apparatus according to the corresponding relationship.