Cross-domain protection networking method for distribution communication network oriented to quantum protection communication business

Abstract

The invention discloses a cross-domain protection networking method for a power distribution communication network oriented to quantum protection communication services. In a power distribution communication network composed of optical access carrying quantum key distribution, a software-defined networking technology is introduced to provide a The centralized control function architecture of the ubiquitous optical access network for cross-domain protection further designs the cross-domain protection function module and expands the corresponding protocol. Then, based on the architecture, a global evaluation strategy is designed to make decisions for the resource allocation of protection links by integrating ubiquitous access resources and optical aggregation layer resources of the entire network. Finally, an interactive process for realizing cross-domain protection is designed. Compared with the traditional access network, it can realize a more robust network form and provide effective business protection services 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...

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 necessary survivability guarantee for the business due to their robustness constraints. , high survivability power distribution communication network architecture has become an inevitable trend in the development of access networks

However, dismantling the existing ubiquitous access network and deploying a new ubiquitous access network with a high survivability architecture will consume a lot of capital and time costs. How to realize the current The smooth evolution of the distributed communication network to the highly survivable distribution communication network architecture is the key to improving the survivability of the distribution communication network

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