Method for Creating Port Group on SDN, SDN Controller, and Network System

A method for creating a port group on a specified forwarding device on a software defined network (SDN), wherein the method comprises:

• receiving, by a second SDN controller, a specified identifier sent by a first SDN controller, wherein the specified identifier is generated by the first SDN controller according to a device identifier of a first forwarding device in a preset path, a device identifier of a last forwarding device in the preset path, and a device identifier of the specified forwarding device in the preset path;
• creating, by the second SDN controller, a specified port group corresponding to the specified identifier;
• and
• delivering the specified port group to the specified forwarding device.

A software defined network (SDN) controller, wherein the SDN controller comprises:

• a memory comprising instructions;
• and
• a processor coupled to the memory, wherein the instructions cause the processor to be configured to:
• generate a specified identifier according to a device identifier of a first forwarding device in a preset path, a device identifier of a last forwarding device in the preset path, and a device identifier of a specified forwarding device in the preset path;
• create, on a specified SDN controller, a specified port group corresponding to the specified identifier;
• and
• enable the specified SDN controller to deliver the specified port group to the specified forwarding device.

A software defined network (SDN) controller, wherein the SDN controller comprises:

• a memory comprising instructions;
• and
• a processor coupled to the memory, wherein the instructions cause the processor to be configured to:
• receive a specified identifier sent by a specified SDN controller, wherein the specified identifier is generated by the specified SDN controller according to a device identifier of a first forwarding device in a preset path, a device identifier of a last forwarding device in the preset path, and a device identifier of a specified forwarding device in the preset path;
• create a specified port group corresponding to the specified identifier;
• and
• deliver the specified port group to the specified forwarding device.

A network system, comprising:

• a first software defined network (SDN) controller;
• a second SDN controller;
• and
• a specified forwarding device,
• wherein the specified forwarding device is directly controlled by the second SDN controller,
• wherein the first SDN controller is configured to:
• generate the specified identifier according to a device identifier of a first forwarding device in a preset path, a device identifier of a last forwarding device in the preset path, and a device identifier of the specified forwarding device in the preset path;
• create, on the second SDN controller, a specified port group corresponding to the specified identifier;
• and
• enable the second SDN controller to deliver the specified port group to the specified forwarding device, and
• wherein the second SDN controller is configured to:
• receive the specified identifier sent by the first SDN controller;
• create the specified port group corresponding to the specified identifier;
• and
• deliver the specified port group to the specified forwarding device.