Switch transmission control method, switch transmitting method and related equipment in SDN (Software Defined Network)

Abstract

The invention discloses a switch transmission control method, a switch transmitting method and related equipment in an SDN (Software Defined Network), which are used for solving the problems of a huge data volume of a flow table and difficulty in updating and maintenance on the flow table, which are caused by establishment of a flow table entry for each user or each data connection, and solving the problem of difficulty in implementing flow transmission based on an IP (Internet Protocol) quintuple under the condition of massive terminals. The switch transmission control method comprises the steps of determining a transmission path of a data packet in the SDN, and an entrance switch and an exit switch on the transmission path; according to the transmission path, determining a global path identifier for uniquely identifying the transmission path; and determining a first flow rule according to packet header information of the data packet and the global path identifier, sending the first flow rule to the entrance switch, determining a second flow rule according to the global path identifier, and sending the second flow rule to the exit switch.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a switch forwarding control in a software defined network (Software Defined Network, SDN), a forwarding method and related equipment. Background technique [0002] SDN architecture such as figure 1 As shown, the main idea of ​​SDN is embodied in the following aspects: separation of control plane and forwarding plane; centralized control and scheduling of network resources; developed programmability, which allows applications to program and schedule network resources, realizing the integration of applications and network resources. Integrate seamlessly. The network devices in the SDN may include forwarding devices whose forwarding rules are controlled by the SDN controller, usually an SDN switch supporting the OpenFlow protocol. [0003] The control plane node in SDN is called SDN controller (Controller), which is responsible for network topology calculation...

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a switch forwarding control in a software-defined network, a forwarding method and related equipment, which are used to solve the problem of establishing a flow table item for each user or each data connection, resulting in a huge amount of data in the flow table, and updating and maintaining the flow table It is more difficult, and will cause a large number of southbound interface signaling problems, and solve the problem that it is difficult to implement flow forwarding based on IP quintuples in the case of a large number of terminals

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