CALCULATING SPANNING TREE
First Claim
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1. A method for calculating a spanning tree, comprising:
- virtualising, by a SDN (Software Defined Network) controller, a plurality of SDN forwarding devices in a SDN as a virtual network bridge device;
performing, by the SDN controller, interaction of spanning tree protocol (STP) data unit packets with an external network device through the virtual network bridge device to calculate a spanning tree between the virtual network bridge device and the external network device according to a STP running on the SDN controller and information carried in a STP data unit packet from the external network device.
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Abstract
According to an example of the present disclosure, in a method for calculating a spanning tree, a SDN controller virtualizes a plurality of SDN forwarding devices in a SDN as a virtual network bridge device, performs interaction of spanning tree protocol (STP) data unit packets with an external network device through the virtual network bridge device to calculate a spanning tree between the virtual network bridge device and the external network device according to a STP running on the SDN controller and information carried in a STP data unit packet from the external network device.
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Citations
12 Claims
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1. A method for calculating a spanning tree, comprising:
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virtualising, by a SDN (Software Defined Network) controller, a plurality of SDN forwarding devices in a SDN as a virtual network bridge device; performing, by the SDN controller, interaction of spanning tree protocol (STP) data unit packets with an external network device through the virtual network bridge device to calculate a spanning tree between the virtual network bridge device and the external network device according to a STP running on the SDN controller and information carried in a STP data unit packet from the external network device. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A software defined network (SDN) controller, comprising:
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a processor and a non-transitory storage medium storing machine readable instructions that are executable by the processor to; virtualize a plurality of SDN forwarding devices that are connected with each other in a SDN as a virtual network bridge device; perform interaction of spanning tree protocol (STP) data unit packets with an external network device through the virtual network bridge device to calculate a spanning tree between the virtual network bridge device and the external network device according to a STP running on the SDN controller and information carried in a STP data unit packet from the external network device. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification