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A kind of SDN switch operation method, controller and switch

An operation method and switch technology, applied in the field of communications, can solve the problems of aging SDN switches, data packets cannot be forwarded continuously, data packets cannot be matched to flow table entries, etc., to achieve the effect of ensuring continuous flow

Active Publication Date: 2019-08-09
KYLAND TECH CO LTD
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  • Claims
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Problems solved by technology

[0003] In the SDN network architecture in the prior art, when an SDN switch is disconnected from the SDN controller, the disconnected SDN switch will automatically age, such as receiving a new type of data packet, and in the When no flow entry is matched in the disconnected SDN switch, the data packet cannot continue to be forwarded
After the SDN switch in the prior art is disconnected from the SDN controller, the SDN switch cannot receive the new flow table issued by the SDN controller, and the data packets that need to be forwarded by the disconnected SDN switch may not be matched to flow entry

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  • A kind of SDN switch operation method, controller and switch
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  • A kind of SDN switch operation method, controller and switch

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Embodiment Construction

[0028] In order to make the object, technical solution and beneficial effects of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] figure 1 It exemplarily shows a schematic diagram of a software-defined network (SDN) system architecture applicable to the embodiment of the present invention.

[0030] The software-defined network SDN system in the embodiment of the present invention includes an SDN controller and at least one SDN switch; data forwarding and control can be realized through the SDN controller and the SDN switch.

[0031] Such as figure 1 As shown, the software-defined network SDN system architecture 100 includes: an SDN controller 101 , an SDN switch 102 , an SDN switch 103 , and an SDN switch 104 . Wherein, the SDN controller 101 is respectively connected to the SDN switch 102, the SDN switch 103, and the SDN switch 104, and there are various ...

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Abstract

The invention relates to an SDN switch, an operation method thereof and an SDN controller, belongs to the field of communication technology, and aims at enabling the SDN switch to continue forwarding data packets and ensuring uninterrupted services after that the SDC switch is disconnected from the SDN controller. The method applied to each of at least one SDN switch disconnected from the SDN controller comprises that the SDN switch receives a message to be processed; and according to a corresponding forwarding rule received when the SDN switch is disconnected, the SDC switch processes the message to be processed. Thus, the SDN switch can continue forwarding the data packet after being disconnected from the SDN controller, and it is ensured that the service is uninterrupted.

Description

technical field [0001] The embodiments of the present invention relate to the communication field, and in particular, to an SDN switch operation method, a controller and a switch. Background technique [0002] Software Defined Networking (SDN for short) is a new type of network architecture, which is mainly implemented based on the OpenFlow (OpenFlow) protocol. The SDN network architecture includes an SDN controller and multiple SDN switches. Multiple SDN switches can be managed under the SDN controller. The SDN switch locally stores one or more sets of flow tables, and the flow table may include multiple flow entries. If the forwarding data packet has a corresponding flow entry in the flow table, the data packet is forwarded according to the flow table entry; if the data packet to be forwarded does not have a corresponding flow entry in the flow table, the SDN switch sends a request to the SDN controller, The SDN controller issues a new flow entry according to the request,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/747
CPCH04L45/742
Inventor 田明昊
Owner KYLAND TECH CO LTD
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