A distribution communication network cross-domain protection network oriented to quantum protection communication service

A technology for communication services and communication networks, which is applied in the field of cross-domain protection networking of power distribution communication networks for quantum protection communication services, and can solve problems such as lack of network survivability, large capital costs and time costs.

Active Publication Date: 2018-12-11
FUZHOU POWER SUPPLY COMPANY OF STATE GRID FUJIAN ELECTRIC POWER +4
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the access layer, the original design intention of various ubiquitous access networks only considers the access problem of users, and lacks consideration or insufficient consideration for network survivability, and its network architecture is very simple. For example, the general structure of passive optical network is only For a simple tree network, users are only connected by a single fiber link
However, in today's network scenarios where the network scale of the power distribution communication network is gradually expanding and the demand for business survivability is increasing, the traditional ubiquitous access network architectures cannot provide the

Method used

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  • A distribution communication network cross-domain protection network oriented to quantum protection communication service
  • A distribution communication network cross-domain protection network oriented to quantum protection communication service
  • A distribution communication network cross-domain protection network oriented to quantum protection communication service

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Embodiment 1

[0051] A cross-domain protection networking of distribution communication network oriented to quantum protection communication services, including: setting up a unified control architecture of distribution communication network, the unified control architecture of distribution communication network is divided into two planes, a data plane and a control plane , the data plane includes the optical transmission part and the access network part. The optical transmission part is mainly an optical aggregation ring network, and the access network part mainly considers the ubiquitous access network superimposed by the two-layer physical deployment of the wireless multi-hop network and the PON network. The optical transmission part is mainly composed of a convergence ring network, including an OpenFlow-enabled wavelength selective switch (OpenFlow-enabled WSS, OF-WSS) and an OpenFlow-enabled core router (OpenFlow-enabled Core Router, OF-CR). The wireless multi-hop network in the access ...

Embodiment 2

[0076] The invention also proposes a global evaluation strategy for the allocation of service protection path resources, which can provide effective guidance for the reasonable allocation of protection resources.

[0077] In the OC server, using the resources of the entire network collected by OC and the main path information allocated by RC for services, the ksp routing algorithm can be used to find k candidate links with the shortest path and no duplicate links with the main path on a global scale road. Then use the ksp routing algorithm again on the single layer of the wireless network layer to find k candidate wireless links with the shortest path and no duplicate links with the main path, thus obtaining 2k candidate paths.

[0078] Find the path segments of different domain networks in each path, and then calculate the path resource function value. The network transfer functions of the wireless layer, the PON layer, and the optical aggregation layer are shown in formulas...

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Abstract

The invention discloses a distribution communication network cross-domain protection network oriented to quantum protection communication service. A centralized control architecture of ubiquitous optical access network for cross-domain protection is proposed by introducing software-defined networking technology in the distribution communication network which is composed of optical access network carrying quantum secret key distribution. The cross-domain protection function module is further designed and the corresponding protocol is extended. Then, based on this architecture, a global evaluation strategy is designed, which integrates the ubiquitous access resources and optical convergence layer resources to make decisions for the resource allocation of protection links. Finally, the interactive flow of cross-domain protection is designed. Compared with the traditional access network, it can achieve a more robust network form and provide effective service protection and network performance.

Description

technical field [0001] The invention relates to the technical field of survivability of power distribution communication networks, in particular to a cross-domain protection networking method for power distribution communication networks oriented to quantum protection communication services. Background technique [0002] The application mode of quantum key in power distribution business, such as figure 1 , where the hollow arrow path is the quantum key distribution channel, the endless curved path is the business communication channel, and the hollow circle dotted line path at both ends is the quantum key negotiation generation channel. [0003] On the main station side of the city, according to the different transmission channel quantum encryption schemes or terminal business quantum encryption schemes adopted, the location where the quantum key is stored on the main station side is a secure access gateway or an encryption authentication device; on the power distribution te...

Claims

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Application Information

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IPC IPC(8): H04Q11/00H04L9/08
CPCH04L9/0852H04Q11/0067
Inventor 陈熹侯功华何尚骏李宏发林琳杨力帆辛永陈宏李温静欧清海邹保平吴庆冯笑黄长贵谢石木林林屹黎金城柯金发李金泽
Owner FUZHOU POWER SUPPLY COMPANY OF STATE GRID FUJIAN ELECTRIC POWER
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