Communication method, device and system used for physical device and virtual network

Abstract

The invention provides a communication method, a device and a system used for a physical device and a virtual network. The method comprises the following steps that a NVGRE gateway receives a first request data packet from the physical device through a two-layer switch, and a target IP address of the first request data packet is an IP address of a virtual machine in the virtual network; the NVGRE gateway carries out network-virtualization general route packaging on the first request data packet so as to acquire a first packaging data packet including the first request data packet; and the NVGRE gateway forwards the first packaging data packet to the virtual network. The physical device is connected to the virtual gateway based on a second layer network protocol so as to increase connection performance and a user experience degree.

Description

technical field [0001] The invention relates to network virtualization technology, in particular to a communication method, device and system for physical devices and virtual networks. Background technique [0002] Just as server virtualization (hypervisor) can provide a "virtual machine" for the operating system, network virtualization decouples the virtual network from the physical network infrastructure, thereby solving problems such as the limitation of hierarchical IP address allocation for virtual machine configuration. [0003] However, how to communicate from the physical network to the virtual network has become a new topic. [0004] In the prior art, Microsoft Corporation provides a Hyper-V Network Virtualization Gateway (Hyper-V Network Virtualization Gateway) for bridging a physical device and a network virtualization environment. Specifically, physical devices are connected to routers based on Layer 3 network protocols, and are connected to network virtualizati...

AI Technical Summary

Problems solved by technology

[0005] However, in the existing technology, since the physical device is connected to the virtual gateway based on the layer-3 network protocol, it is difficult to set the physical device and the virtual machine in the virtual network in the same subnet, which makes it difficult to migrate the virtual machine to the physical device.

It is also difficult to maintain a completely consistent user experience on virtual machines and physical devices, and it is difficult to realize virtualized services seamlessly supporting physical device access

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