A redirection-based anycast method and system in NDN

A technology of redirection and scheduler, which is applied in the direction of transmission system, digital transmission system, data exchange network, etc. It can solve the problems of being unable to meet flexible and changeable anycast requirements, and achieve the effect of solving scalability problems

Active Publication Date: 2019-06-25
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing NDN transmission mode only provides a simple anycast mechanism based on anycast routing, which cannot meet the flexible and changeable anycast requirements.

Method used

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  • A redirection-based anycast method and system in NDN
  • A redirection-based anycast method and system in NDN
  • A redirection-based anycast method and system in NDN

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Embodiment Construction

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0035] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...

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PUM

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Abstract

The invention discloses a redirection-based anycast method and system in NDN. The method includes: the client sends a first request to the first-tier scheduler; the first-tier scheduler selects a server group serving the first request according to a first preset policy; the first-tier scheduler returns a first redirection to the client notification; the client sends a second request to the second-level scheduler according to the first redirect notification; the second-level scheduler selects a server serving the second request according to the second preset policy; the second-level scheduler returns the second request to the client Two redirection notices; the client sends a third request to the selected server according to the second redirection notice; the server returns a response message to the client. The method and system of the present invention can satisfy diversified anycast requirements in the NDN network without destroying the forwarding logic of the forwarding engine of the NDN content router.

Description

technical field [0001] The present invention relates to the technical field of Named Data Networking (NDN), in particular to a redirection-based anycast method and system in NDN. Background technique [0002] At present, users' access to the Internet has changed from point-to-point communication to content acquisition. The traditional TCP / IP network only transmits content, but does not perceive content, resulting in a large amount of redundant traffic transmission on the network. In order to solve the content explosion caused by content acquisition, the research community proposes a content-centric network NDN, which realizes the decoupling of content and address, as well as the sender and receiver, and provides ubiquitous built-in cache to satisfy users' requirements for content. Asynchronous access with heavy tail characteristics. [0003] There are many large-scale services with billions of dollars in the existing Internet, such as Google, Facebook, WeChat, etc. These ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/701H04L29/08
CPCH04L45/00H04L67/10H04L67/1004H04L67/1014H04L67/63
Inventor 张国强齐德胜高茜
Owner NANJING NORMAL UNIVERSITY
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