System, switch device and method of controlling a plurality of switch devices
AssigneeFujitsu Limited
InventorKeiichi Nakatsugawa
Life of this patent
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Abstract
A switch apparatus includes a first controller, a second controller, and a plurality of switch devices, the plurality of switch devices being configured to receive a packet and store a flow table which indicates a method of handling a process of the received packet, wherein the first controller informs a first content of the flow table to the plurality of switch devices, a first switch device detects a communication error between the first switch device and the first controller, the first switch device informs a second switch device of the communication error, and the second switch device changes a connecting destination from the first controller to the second controller.
Claims20
A system comprising:
- a first controller;
- a second controller;
- and
- a plurality of switch devices including a first switch device and a second switch device, the plurality of switch devices being configured to receive a packet and store a flow table which indicates a method of handling a process of the received packet,
- wherein
- the first controller informs a first content of the flow table to the plurality of switch devices,
- the first switch device detects a communication error between the first switch device and the first controller,
- the first switch device informs the second switch device of the communication error between the first switch device and the first controller, and
- the second switch device changes a connecting destination from the first controller to the second controller.
A switch device, comprising:
- a memory;
- and
- a processor coupled to the memory and configured to
- receive a packet,
- receive, from a controller, a content of a flow table which indicates a method of handling a process of the received packet,
- detect a communication error between the switch device and the controller, and
- inform the communication error to another switch device.
A method of controlling a plurality of switch devices, the method comprising:
- storing, in a first switch device and in a second switch device by a first controller, a flow table including a first content which indicates a method of handling process of a packet;
- detecting, by the first switch device, a communication error between the first switch device and the first controller;
- informing, by the first switch device, the communication error between the first switch device and the first controller to the second switch device;
- changing, by the first switch device, a first connection between the second switch device and the first controller to a second connection between the second switch device and a second controller;
- and
- setting, by the second controller, in the first switch device and the second switch device, the flow table including a second content.
Dependencies are inferred from the claim text.