Open flow switchboard system and message processing method of open flow switchboard system

Abstract

The invention provides an open flow switchboard system and a message processing method of the open flow switchboard system. The open flow switchboard system comprises one or more of controllers, an open flow switchboard, an application server and a QoS (Quality of Service) three-layer switchboard, wherein the open flow switchboard is connected with the one or more of controllers, the application server is connected with the open flow switchboard and used for assigning differentiated services code point (DSCP) values in the messages according to message types of the messages, and the QoS three-layer switchboard is connected with the application server and used for acquiring priority level of current messages according to the DSCP values and sending the messages to the one or more of controllers according to the priority level of the messages. According to types of the messages, the open flow switchboard system and the message processing method of the open flow switchboard system perform dispatching of messages in the system according to certain priority level, do not improve cost of the whole system, simultaneously resolve the problem of high-priority-level message switching due to undersize of broadband, and further improve stability of the system.

Description

technical field [0001] The invention relates to the technology in the field of Ethernet, in particular to an Openflow switch system and a message processing method thereof. Background technique [0002] At present, the rapid development of the Internet, the huge application scale and the importance of its status are far beyond the imagination of the designers. However, the current Internet mainly has the following disadvantages: there is no unified management, network forwarding mechanism and strategy within a specific scope Single, it is difficult for operators to optimize their own networks to the maximum extent, and the functions and protocols used by traditional switches for forwarding are numerous and complex, difficult to configure, and the system is prone to errors. In order to deal with the above-mentioned disadvantages, people have proposed the Openflow switch, which separates the packet forwarding and forwarding strategy on the traditional switch, and uses a dedica...

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Problems solved by technology

[0003] ginseng figure 1 As shown, at present, in the Openflow switch system, often one or more controllers in the control network are directly connected to the corresponding Openflow switch and perform data communication. However, the control channel (control path) of one or more controllers The bandwidth is limited, and the processing power of the central processing unit (CPU) of the general Openflow switch is not strong. When the Openflow switch is connected to multiple controllers, the management port of Openflow often needs to send and receive a large number of messages at the same time. Due to the limitation of bandwidth, It is easy to cause control packet loss, which causes the entire system network to be unstable

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