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A named data network transmission control method and system

A named data network, transmission control technology, applied in the field of computer networks, can solve the problem of wasting network resources

Active Publication Date: 2017-04-12
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the above problems, the purpose of the present invention is to provide a named data network transmission control method and system, which can solve the problem that more network resources will be wasted by using the traditional sliding window method in the named data network, and use accurate congestion information to solve the problem. Network congestion, transmission control method for improving network resource utilization

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  • A named data network transmission control method and system
  • A named data network transmission control method and system
  • A named data network transmission control method and system

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Embodiment Construction

[0073] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.

[0074] The specific implementation of the present invention is divided into three parts. Firstly, the rate at which the receiver sends the request packet is determined, and the accurate congestion information is used to determine the adaptive forwarding strategy of the router. Finally, the named data network transmission control method of the present invention is optimized.

[0075] First, a specific description will be given on determining the rate at which the receiver sends request packets.

[0076] The receiver calculates the rate of sending request packets according to the accurate congestion...

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Abstract

The invention discloses a named data network transmission control method and system. The method includes: a step of determining the rate, the requester sends a request packet to the named data network, and when the network returns the data packet corresponding to the request packet to the requester, The router estimates the accurate congestion information in the network and writes the accurate congestion information into the data packet, and calculates the maximum sending rate of the request packet of the flow according to the accurate congestion information and the estimated value of the data packet size, and sends it at this rate Subsequent request packet; determine the forwarding strategy step, when the network returns the data packet corresponding to the request packet to the requester, the router also calculates the available value of each forwarding interface corresponding to the flow path according to the accurate congestion information in the network, the The available value is used to adaptively select the interface with the largest available value when forwarding the request packet. Therefore, the utilization rate of network resources can be effectively improved, the packet loss rate can be reduced, and the data flow completion time can be improved finally.

Description

technical field [0001] The invention relates to the field of computer networks, in particular to a named data network transmission control method and system based on accurate congestion information. Background technique [0002] Named Data Networking (NDN, Named Data Networking) is a new future Internet architecture. Different from the user-to-user (host-to-host) transmission method in TCP / IP, the named data network regards the network as a content resource pool. When the requester (Consumer) needs to request a certain content, it sends a request packet to the network. , when the network finds the information corresponding to the request packet, the provider (Producer) will return the data packet corresponding to the request packet to the requester. The rate at which user request packets are sent will directly affect the rate at which data packets are returned by the network, thereby affecting the utilization of network resources. The forwarding table in TCP / IP is determin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/813H04L47/20
Inventor 周建二李振宇武庆华谢高岗
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI