Software-defined network traffic sampling method and system

A software-defined network and flow technology, applied in the field of communication, can solve problems such as impact, complexity, and overall destructiveness of analysis equipment
CN104579810BInactive Publication Date: 2019-10-25ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2019-10-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a flow sampling method and system for a software-defined network, and relates to the field of communication, in particular to a flow sampling method and system for a software-defined network. The method comprises the following steps: an SDN controller is used for acquiring flow sampling requirement from a north interface or a management interface; the SDN controller is used for matching the flow sampling requirement with current flow table entry information and SDN forwarding device information, generating a set table entry and a guide flow table entry for performing sampling behavior, and sending the set table entry and the guide flow table entry to an SDN forwarding device, wherein the set table entry comprises a sampling ratio, and the guide flow table entry comprises flow information and associated set table entry ID; the SDN forwarding device is used for sampling the flow according to the guide flow table entry and the set table entry after receiving the set table entry and the guide flow table entry. The technical scheme provided by the invention is applicable to the software-defined network; according to the method, the SDN flow sampling with service continuity is achieved.
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Description

technical field

[0001] The present invention relates to the communication field, in particular to a software-defined network flow sampling method and system. Background technique

[0002] Today's Internet (Internet) based on TCP / IP has achieved great success after more than 40 years of development. It is closely related to people and has become one of the indispensable infrastructures for work, study and life. The TCP / IP-style Internet, because of the division of labor and organization principle of "simple processing by network / network equipment, and complex processing to the host side / side" at the beginning of its design, has formed the current status of the Internet architecture: the host side The application layer protocol can be modified and deployed very conveniently and flexibly, so the application layer software has been developed by leaps and bounds, and the functions of the application layer have been greatly enriched; in sharp contrast to it is the network layer, a...

Claims

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