Method and system for collecting virtual network flow in data switch

Abstract

The invention provides a method and a system for collecting virtual network flow in a data switch. The method comprises the following steps: receiving a message; collecting physical network information carried by the message according to outer layer information of the message, and calculating a hash value according to the outer layer information; linking the collected physical network information and the hash value to write and store the physical network information and the hash value in a physical network information flow table together; collecting virtual network information carried by the message according to inner layer information of the message; linking the collected virtual network information and the hash value to write and store the virtual network information and the hash value in a virtual network information flow table together; looking up the physical network information flow table and the virtual network information flow table; and if the hash value in the physical network information flow table is the same as the hash value in the virtual network information flow table, matching the physical network information and the virtual network information of the corresponding hash value. The method provided by the invention can be used for directly obtaining the virtual network flow through the data switch without the participation of a server, thereby reducing the deployment cost and the implementation complexity.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method and system for collecting virtual network traffic in a data switch. Background technique [0002] In the process of network communication, network operation and maintenance and designers often need to collect physical network information and virtual network information when data passes through the switching center in order to evaluate, expand, and troubleshoot data center network problems conveniently and quickly. [0003] In the prior art, the following methods are often used to collect physical network information and virtual network information when data passes through the switching center. In this embodiment, information is collected by means of various hardware devices, and the hardware devices mainly include: a data sending server, a network device, and a traffic analysis server; the network device is a data exchange device such as a switch; in the specific imp...

AI Technical Summary

Problems solved by technology

[0004] However, the method of obtaining virtual network information in the prior art requires the participation of various types of equipment, including data sending servers, network equipment, traffic analysis servers, and software; in addition, traffic analysis software is used to compare the physical In the process of traffic information, a lot of content is involved, especially after the scale of the data center network expands, the load of the traffic analysis server is higher, so the cost of obtaining virtual network information is higher, and the deployment complexity is also higher

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