Cloud computing distributed network implementation method and system based on openflow

Abstract

The invention discloses a method and a system for implementing a cloud computing distributed network based on OpenFlow. The method comprises the following steps that a cloud computing network platform sends a message notification to a virtual switch and / or an OpenFlow switch; when the virtual switch on a computing node or a network node receives the message notification, the virtual switch issues flow tables used for indicating input and output of traffic of a virtual machine; and when the OpenFlow switch receives the message notification, according to configuration data, issuing the following seven flow tables including a flow table used for processing a broadcast message, a flow table used for recognizing the network, a flow table used for generating two-layer forwarding information, a flow table used for filtering of a security group, a flow table used for generating three-layer distributed forwarding information, a flow table used for filtering of a firewall and a flow table used for forwarding.

Description

technical field [0001] The present invention relates to cloud computing technology and OpenFlow technology, in particular to an OpenFlow-based cloud computing distributed network implementation method and system. Background technique [0002] Cloud computing (Cloud Computing) is an Internet-based computing method, through which shared hardware and software resources and information can be provided to computers and other devices on demand. [0003] Cloud computing network is an important part of cloud computing. The basic core of cloud computing network includes virtual Layer 2 switches, virtual routers, security groups, and virtual firewalls. It needs to be able to provide tenant virtual networks with mutual isolation, security functions, and implementation as required 2, 3 layers of intercommunication function. The virtual devices on the cloud computing network are virtualized based on the underlying real physical devices; currently, the underlying physical devices are div...

AI Technical Summary

Problems solved by technology

[0009] 1) Usually, many complex flow tables are configured on the virtual switch of the computing node, and various tunnel encapsulation, decapsulation, spanning multiple namespaces and 3 bridges are performed. This connection and configuration is very complicated, and it is performed on the computing node. These routing, cross-namespace, and cross-bridge software processing speeds will be very slow, and computing nodes should reserve more resources for virtual machines.

[0010] 2) It does not solve the problem of the efficiency of node traffic forwarding between racks and the scale limit of 4094 VLAN networks

[0012] 1) The OpenFlow controller and the application software (APP) on the controller are usually placed separately on a dedicated server, which is prone to single point of failure

[0013] 2) The problem of how to process broadcast messages has not been solved

[0014] 3) It does not involve how to solve security filtering functions such as security groups and firewalls commonly used in cloud computing networks

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