A Realization Method of Shortest Route Based on FPGA

Abstract

The invention discloses an FPGA-based shortest route realization method. Utilizing the high-speed concurrent feature of the FPGA, the SDN controller uploads topology information through the UDP protocol, and the FPGA parses the UDP data packets to obtain the topology information and stores it in the DDR2. When a user initiates an access request, access DDR2 to obtain topology information and obtain the best transmission path information through the shortest route algorithm, package the information into UDP data and send it to the SDN controller. The invention can realize the improvement of data transmission efficiency under the high-speed network environment.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular to an FPGA-based shortest route realization method. Background technique [0002] With the rapid development of network technology and the emergence of massive data processing technologies such as cloud computing and big data, traditional switching devices cannot meet the current network data transmission and performance requirements. SDN (Software Defined Networking) separates forwarding and control, enabling flexible control while fast forwarding. However, while the SDN centralized control method brings convenience to network data transmission, there are also problems. That is, when the network is relatively complex, the SDN network structure will become very large, making it impossible for a single controller to efficiently control the forwarding of data by the switch. . Using multiple controllers to separately control a relatively simple network can reduce the pressure on...

AI Technical Summary

Problems solved by technology

However, while the SDN centralized control method brings convenience to network data transmission, there are also problems. That is, when the network is relatively complex, the SDN network structure will become very large, making it impossible for a single controller to efficiently control the forwarding of data by the switch.

Using multiple controllers to control a relatively simple network separately can reduce the pressure on each controller, but there are also a series of problems such as topology synchronization and transmission path selection.

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