Method and system for accessing virtual network by physical device based on overlay technology

Abstract

The invention discloses a method and a system for accessing a virtual network by a physical device based on an overlay technology. Firstly, the corresponding relation between a physical device accesspoint and a corresponding vxlan_id in the virtual network is obtained, the vxlan_id distribution result is associated with a br_in network bridge, a port is added on the br_in network bridge and mapping is performed between the port and the virtual network, then, mapping is performed between the physical access device and the vlan in the br_out network bridge, br_out is internal mapping of the physical device access point, the port of the physical device access point is mapped to a virtual port on the br_out through the vlan_id, finally, the mapping relation between the vlan_id and the vxlan_id is controlled through the flow tables on the br_out and the br_in, so that the physical access point of the virtual network is mapped to the port of the physical access device, and the physical device is accessed to the virtual network.

Description

technical field [0001] The invention relates to the field of virtualization, in particular to a method and a system for connecting a physical device to a virtual network based on overlay technology. Background technique [0002] SDN (software-defined networking, software-defined network) separates the control plane and data plane of the network, provides a unified interface for network control and management, and shields the differences between different network devices. At the same time, with the continuous development and improvement of virtualization technology, a virtualized network composed of virtual machine nodes has been widely used in malware analysis, network protocol analysis, virus behavior analysis, and physical device testing. The configurability of virtual networks can be improved through the integration of SDN technology and virtualization technology. The advantage of using this network for physical device testing is that software can be used to change the t...

AI Technical Summary

Problems solved by technology

[0005] (1) The flexibility of configuring network devices through VLAN is poor, and the configuration method needs to be changed for different network devices;

[0006] (2) There are relatively large restrictions on the number of physical devices connected, because the VLAN_ID description field has only 8 bits, and the maximum number of VLANs that can be divided is 4096;

[0007] (3) The main application of accessing physical equipment is to monitor the working status of physical equipment, and the method of accessing physical equipment through VLAN needs to analyze and collect on the access switch through traffic mirroring technology. This method is cumbersome to operate. Not easy to achieve

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