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Network security method and device based on optical layer OTDR detection

A technology of network security and optical fiber detection, which is applied in the field of secure communication, can solve problems such as short tunnel life cycle, impossibility, and long encryption key, and achieve the effect of increasing the difficulty of cracking, realizing security, and increasing the length of the key

Pending Publication Date: 2019-07-09
中交信通网络科技有限公司
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Problems solved by technology

If the existing network equipment is not upgraded, it is impossible to use the longest encryption key and the shortest tunnel lifetime for all services

Method used

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  • Network security method and device based on optical layer OTDR detection
  • Network security method and device based on optical layer OTDR detection
  • Network security method and device based on optical layer OTDR detection

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Embodiment Construction

[0036] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

[0037] see Figure 1-8 , a network security method and device based on optical layer OTDR detection, comprising an SDN controller, an IP path calculation module, an IPsec control module, a transmission path calculation module, and an optical fiber detection controller; the SDN controller is connected with the IP path calculation module respectively , an IPsec control module, a transmission path calculation module, and an optical fiber detection controller are connected.

[0038]The SDN controller sends an instruction to the optical fiber detection controller, and the optical fiber detection controller analyzes and executes the instruction and is responsible for optical fiber intrusion detection, and divides the detected intrusion into three levels: high-level intrusion, medium-level intrusion and low-level intrusion. Different security strategies ...

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Abstract

The invention discloses a network security method and device based on optical layer OTDR detection. The device comprises an SDN controller, an IP path calculation module, an IPsec control module, a transmission path calculation module and an optical fiber detection controller, and the SDN controller is connected with the IP path calculation module, the IPsec control module, the transmission path calculation module and the optical fiber detection controller; the SDN controller sends an instruction to an optical fiber detection controller; and the SDN controller triggers the IP path calculationmodule to switch the IP layer route. After the optical fiber intrusion detection is introduced into the SDN architecture, the existing network security equipment does not need to be upgraded, the intrusion condition of the link is monitored in real time, meanwhile, the detection result is fed back to the SDN controller, and the controller avoids intrusion or increases the cracking difficulty by adjusting the transmission layer path, the IP layer path and the encryption means, so that the security of the whole network is realized.

Description

technical field [0001] The invention relates to the technical field of security communication, in particular to a network security method and device based on optical layer OTDR detection. Background technique [0002] OTDR optical path detection uses laser light waves to generate scattering, refraction and reflection when traveling in the optical fiber, and calculates its trace optical power reflection energy value to measure the distance. The data measured by the optical time domain reflection module is sent to the IPC module and compared and calculated with the reference value data in the existing database. If the comparison result exceeds the set value, it means that the optical fiber intrusion occurs, and an alarm is reported to the monitoring center. [0003] SDN is a software-defined network, and its main feature is the separation of centralized control and forwarding control of the network. Centralized control enables the entire network to be logically regarded as a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/071H04L29/06
CPCH04B10/071H04L63/1416
Inventor 江亮高凯张延铭林茂赵韶峰吴晓峰李永萍穆元子王江霞
Owner 中交信通网络科技有限公司
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