Method and device for message transmission

Abstract

The present invention provides a message transmission method and device. The method comprises: an SDN controller sends a first flow table to a first virtual switch, when the first virtual switch receives a message sent by a first virtual machine to a second virtual machine, the first virtual switch sends the message to a virtual router through a VXLAN tunnel built between the virtual router and the first virtual switch; when the SDN controller receives the message sent by the first virtual machine to the second virtual machine, a second virtual switch corresponding to the second virtual machine is obtained, and a second flow table and a third flow table are generated; the SDN controller sends the second flow table to the virtual router, and when the virtual router receives a message, the virtual router sends the message to the second virtual switch through a VXLAN tunnel built between the virtual router and the second virtual switch; and the SDN controller sends the third flow table to the second virtual switch, and when the second virtual switch receives a message, the second virtual switch sends the message to the second virtual machine. The problems of time delay, packet loss and the like of business access may be avoided.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for message transmission. Background technique [0002] With the continuous maturity of virtualization and cloud computing technology, more and more cloud service providers begin to provide cloud services, allowing enterprises to rent resources and services on demand, create their own VDC (Virtual Data Center, virtual data center) or VPC (Virtual Private Cloud, virtual private cloud) network helps enterprises save construction costs and improve business agility. Therefore, many enterprises have begun to migrate most of their IT applications to the public cloud, and interconnect the public cloud and private cloud to build a secure and unified enterprise hybrid cloud. For the VPC network, at the network level, it is to logically abstract the physical network to build an elastic and scalable multi-tenant virtual private network, allowing tenants t...

AI Technical Summary

Problems solved by technology

[0005] In the above implementation, even the messages for the interaction between different VPCs in the same physical computer room need to be forwarded through the Internet, thus increasing the traffic load between the physical computer room and the Internet

Moreover, when packets are forwarded through the Internet, it will cause delays in service access, prone to problems such as packet loss, and affect service experience.

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