Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A dns analysis system and analysis method based on sdn network

A network and caching technology, applied in the field of DNS and network technology, can solve problems such as excessive control channel occupation, influence on control data transmission, system loss of control, etc., to improve efficiency and reliability, reduce risk exposure, and improve robustness Effect

Active Publication Date: 2018-04-27
CHINA INTERNET NETWORK INFORMATION CENTER
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] 2. As a key node of the entire network, the SDN controller is not suitable for carrying high-frequency services
The frequency of DNS data and the frequency of SDN control data are not in the same order of magnitude. If the frequency of DNS requests is too high, the control channel may be excessively occupied by DNS data, affecting the transmission of control data.
The Controller of the SDN network is a network manager, which is more suitable for the task of centrally delivering network configurations, but not suitable for integrating so many functions.
[0013] 3. If a malicious user sends a large number of diverse DNS requests, the DNS requests will be traced back to the SDNController in large numbers, directly exhausting the resources of the SDN control channel, causing the entire system to lose control

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A dns analysis system and analysis method based on sdn network
  • A dns analysis system and analysis method based on sdn network
  • A dns analysis system and analysis method based on sdn network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described below through specific embodiments and accompanying drawings.

[0042] The present invention proposes a safe and efficient DNS resolution scheme based on SDN network. Such as figure 1As shown, the entire system of the present invention is based on the SDN network, partly installed on the original main equipment SDN Controller and SDNSwitch of the SDN network, and partly deployed independently, including four main new modules: DNS Control module, Link Control module, Global DNS cache module and local DNS cache module. The "DNS Control module" and "Link Control module" are deployed on the original core SDN Controller of the SDN network as the application program of the SDN Controller. The "global DNS cache module" is a dedicated device that can be deployed independently. It can be deployed on a single serve...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an SDN network-based DNS resolution system and resolution method. The system includes a DNS control module, a link control module, a global DNS cache module and a local DNS cache module; the DNS control module and the link control module are deployed on the SDN controller of the SDN network, or deployed on a separate device and connected with the SDN controller Interaction; the global DNS cache module is deployed independently, or deployed on an SDN switch for use by other SDN switches; the local DNS cache module is deployed on the SDN switch; the DNS control module manages the DNS service settings of the entire SDN network, and the Link Control module manages Encrypted communication between the local DNS cache module and the global DNS cache module. The invention can avoid excessive use of SDN Controller resources, and improve the efficiency and safety of DNS analysis.

Description

technical field [0001] The invention belongs to the field of network technology and DNS technology, and in particular relates to a DNS analysis system and analysis method based on an SDN network. Background technique [0002] Software Defined Network (SDN) is a new innovative network architecture. Its core technology, OpenFlow, realizes flexible control of network traffic by separating the control plane of network equipment from the data plane. [0003] Such as figure 1 As shown, compared with the traditional network, the basic characteristics of the SDN network have three points: [0004] 1. Separation of control and forwarding. The forwarding plane is composed of controlled forwarding devices, and the forwarding mode and business logic are controlled by the control application running on the separated control plane. [0005] 2. An open interface between the control plane and the forwarding plane. SDN provides an open programmable interface for the control plane. In th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
CPCH04L61/4511
Inventor 项炎平陈远民金键
Owner CHINA INTERNET NETWORK INFORMATION CENTER
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com