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Disaster-resistant campus network DNS device

A technology of campus network and network port, which is applied in data exchange network, digital transmission system, electrical components, etc., and can solve problems such as inability of on-campus users to analyze off-campus resources

Inactive Publication Date: 2018-04-17
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an anti-catastrophe campus network DNS device. The present invention can effectively solve the problem that the campus network DNS authorized by the education network cannot resolve resources outside the school when a catastrophe occurs in the exit line of the education network. It improves the availability and anti-disaster ability of the campus network DNS, and provides a good guarantee for the stable operation of the campus network

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Embodiment Construction

[0010] Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail

[0011] 1. The first network port (101), including 1 DNS access Gigabit network port, used for bidirectional transmission of DNS data; SFP-GE-T Gigabit electrical port SFP module, SFP-GE-T Gigabit The electrical port SFP module has low power consumption, stable performance, and a transmission rate of up to 1.25G b / s.

[0012] 2. The detection network port (102) includes a network port with a control processing chip, which is used to detect the working state of the line, and outputs the detected state to the control processor (103); using the TCP232-T module, TCP232- The T module supports serial port configuration and network configuration functions, and the network port has self-adaptive capability.

[0013] 3. The control processor (103) is responsible for processing the information of the network port 1 (101), the network port 2 (104), and the...

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Abstract

The invention discloses a disaster-resistant campus network DNS device. When the education network gateway line of a campus network gateway breaks down, the data flow of the campus network DNS authorized by the education network will be interrupted, so that the campus network DNS can not resolve the domain name addresses outside the campus, resulting in a bad effect on the access of in-campus users to off-campus websites. The device mainly includes a network port 1, a network port 2, a detecting network port, a control processor and an information exchange network port. Due to the design of the disaster-resistant DNS device, when the education network gateway line breaks down, a DNS disaster work mode can be automatically switched to, and under the mode, the campus network DNS is remappedto a disaster recovery DNS address to resolve the domain name according to a source address routing strategy, which solves the problem that the in-campus users can not use the campus network DNS to resolve off-campus website resources caused by the breakdown of the education network gateway line, when a college deploys the campus network DNS authorized by the education network, and increases the disaster-resistant capacity when the campus network DNS is deployed.

Description

technical field [0001] The invention relates to a disaster-resistant campus network DNS device, which relates to source address routing technology and SNMP technology. Background technique [0002] DNS (Domain Name System) domain name resolution system is mainly used to solve the problem of matching the www URL of a website on the Internet with its corresponding IP address, and is one of the basic core services of the Internet. China Education and Research Computer Network (referred to as Education Network) is a national academic computer Internet network invested and constructed by my country, managed by the Ministry of Education, and led by universities to undertake the construction and operation. When a university builds a campus network, it usually chooses the campus network DNS authorized by the education network to provide domain name resolution services. The data flow of the campus network DNS authorized by the education network flows out and in through the egress lin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04L12/721H04L12/24
CPCH04L41/0213H04L41/0654H04L45/72H04L61/4511
Inventor 霍跃华孙雁宇张颖
Owner CHINA UNIV OF MINING & TECH (BEIJING)