NDN and IP network boundary gateway conversion method and device

Abstract

The invention relates to an NDN and IP network boundary gateway conversion method and device, and belongs to the technical field of communication. The method comprises the following steps: receiving an IP data packet from an IP network, storing a source IP address in the IP data packet, analyzing an HTTP request message in the IP data packet, and extracting a corresponding NDN content name; constructing an NDN interest packet corresponding to the IP data packet; sending the NDN interest packet to an NDN; receiving an NDN data packet returned from the NDN, and constructing an IP data packet corresponding to the NDN data packet; and sending the IP data packet to an IP network. According to the invention, the communication between two different architecture networks is realized by adding thenetwork boundary gateway, the network structure or the network node does not need to be changed, the packet is disassembled and converted in the gateway, the function of the boundary gateway serving as a translator between different communication protocols is utilized to the greatest extent, and the method has the characteristics of high efficiency and simplicity; and a boundary gateway table is set, one-to-one correspondence between the IP network and the NDN routing core is realized by enabling the IP address to correspond to the NDN content name, thereby ensuring reliable data transmission.

Description

technical field [0001] The invention relates to a method and device for switching between an NDN and an IP network border gateway, and belongs to the technical field of communications. Background technique [0002] With the rapid development of wireless networks and the popularization of mobile devices, data applications are increasing exponentially, and the inherent defects of the TCP / IP (Transmission Control Protocol / Internet Protocol) architecture are becoming more and more prominent, as shown in: (1) There are many Two content providers can provide the same content service, and the user cannot judge which content provider is the closest and has the best network environment, and it is easy to look for the farthest, resulting in unnecessary overhead; (2) In the end-to-end communication mode, since data Host access cannot avoid multiple transmissions of the same target object on the same link, wasting link resources; (3) The number of low-intelligence terminals such as the ...

AI Technical Summary

Problems solved by technology

At present, there is no practical solution for the design of the gateway, and it has not completely deviated from the idea of ​​​​taking the address as the core. The main shortcomings are: (1) The existing NDN can only cover the IP network and is designed as a substitute for the IP network. Not its extension; (2) the existing infrastructure cannot transition from IP to NDN in the short term; (3) there is no feasible mapping of IP addresses to content names

Information transmission between IP and NDN independent network is currently not possible

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