Forwarding Path Link Table Packet In Software Defined Network

A Software Defined Network (SDN) controller, comprising:

• a processor and a non-transitory computer readable storage medium in communication with the processor;
• the storage medium stores instructions which may be executed by the processor, and the instructions comprise:
• a forwarding path link table packet generating module, to generate a forwarding path link table packet;
• the forwarding path link table packet includes forwarding information of each SDN switch on a forwarding path;
• and
• a forwarding path link table packet sending module, to send the forwarding path link table packet to any one of a plurality of SDN switches on the forwarding path, to enable the forwarding path link table packet to be delivered among the plurality of SDN switches on the forwarding path;
• so as to cause each SDN switch that receives the forwarding path link table packet to generate a forwarding flow table entry of the SDN switch according to the forwarding information of the SDN switch in the forwarding path link table packet, and forward the forwarding path link table packet on the forwarding path.

A method for distributing a flow table entry in a Software Defined Network (SDN), wherein the method is applied to a SDN switch, and comprises:

• receiving a forwarding path link table packet;
• the forwarding path link table packet includes forwarding information of each SDN switch on the forwarding path;
• generating a forwarding flow table entry corresponding to the SDN switch based on the forwarding information of the SDN switch in the forwarding path link table packet;
• and
• delivering the forwarding path link table packet to another SDN switch on the forwarding path to which the forwarding path link table packet has not yet been delivered.

A Software Defined Network (SDN) switch, comprising:

• a processor and a non-transitory computer readable storage medium in communication with the processor;
• the storage medium stores instructions which may be executed by the processor, and the instructions comprise:
• a forwarding path link table packet receiving module, to receive a forwarding path link table packet;
• the forwarding path link table packet includes forwarding information of each SDN switch on the forwarding path;
• a forwarding flow table entry generating module, to generate a forwarding flow table entry corresponding to the SDN switch based on the forwarding information of the SDN switch in the forwarding path link table packet;
• and
• a forwarding path link table packet delivering module, to deliver the forwarding path link table packet to another SDN switch on the forwarding path to which the forwarding path link table packet has not yet been delivered.