Content delivery method based on software defined network and name routing technology

Abstract

The invention relates to a content delivery method based on a software defined network and a name routing technology, and belongs to the technical field of communication. The method includes the following steps : a user request data packet is sent to a gateway device; the gateway device performs deep data packet detection on the user request data packet to obtain a content name in the data packet, maps the content name as a content ID, and fills to an optical field of a data packet IP header; an OF switch receives the data packet processed by the gateway device, and performs matching operation on the content ID in the data packet according to matching fields in an OpenFlow flow table item issued by an SDN controller; if matching is successful, the OF switch executes forwarding operation according to an instruction field in the flow table item; and a cache server performs content delivery for the data request of the user. Otherwise, the controller selects an optimal path based on a global network view and issues the OpenFlow flow table to the OF switch that the path passes. The content delivery method provided by the invention can reduce complexity of a router and data packet processing delay, and can be well fused with an existing IP network and OpenFlow protocol.

Description

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AI Technical Summary

Benefits of technology

This technology described in this patents allows for efficient management of network devices that use different types of communication networks like Internet Protocol (IP) or wireless LANs. It uses an interface called Network Address Translation (NETA), where users request specific URLs from servers connected through various routers. These URL addresses are mapped onto their own identifier instead of changing its original value during transmission. Users then receive these URLs over HTTP requests sent across multiple interfaces while they move around within them. By doing all three things together, the system learns about what's happening behind each link between two nodes - making sure there isn’t any changes needed before sending new ones. Overall, this approach improves efficiency and reliability in transmitting digital messages via internet connections.

Problems solved by technology

Technological Problem addressed in this patented technical solution described in the patents relates to improving performance when delivering media over networks like HTTP streaming without relying solely upon local storage devices such as hard disk drives. Current solutions require multiple layers of communication between client machines and servers, making it challenged to efficiently manage large amounts of bandwidth resources while optimizing content delivery times due to limitations associated with current technologies.

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