Analysis of the method of optimized data caching in the Content Delivery Network
Journal Title: Проблеми телекомунікацій - Year 2018, Vol 0, Issue 1
Abstract
Concept of Content Delivery Network (CDN) system and methods of caching data on edge servers were considered in this paper. The main task of the CDN network is providing the qualitative information delivery to the end user. Content Delivery Network is a geographically distributed network, that contain a number of content servers and routers. As a rule, it consists of a main node (Origin), and caching nodes (Edges) – points of presence, which can be located in various parts of the world. All content is stored and updated on the Origin server. The structural scheme of organizing the work of the CDN network, consisting of three complementary planes, was presented. Each plane performs special functions and has its own implementation features. Access Plane provides end-user access to content and the interaction of caching servers among themselves and on other planes. The load balancing plane is organized according to the principle of the DNS service and allows to redirect the user's requests to the nearest caching servers. This plane also inter-acts with the metric plane, which contains up-to-date information of the status of all servers involved in delivery and caching of data. As part of this paper, we proposed a method for optimized caching of data in the CDN network. The algorithm of this method is presented. Dependencies that make it possible to evaluate the work of this method in comparison with existing methods are given. The proposed method allows to significantly improve the Hit Ratio, and thus ensure efficient use of cached data and reduce the load on servers of origin.
Authors and Affiliations
Мар'ян Іванович Кирик, Назарій Михайлович Плесканка, Мар'яна Вікторівна Плесканка
Keywords
Related Articles
- EP ID EP466624
- DOI -
- Views 94
- Downloads 0
Methods of System Policy in Creation of Infocommunication Systems
Some results of scientific researches of the Department of Telecommunication Systems (KNURE) connected with employment of stochastic dynamic models in a state space are presented. It is argued that the representation of...
Electromagnetic prediction method in mobile communication networks using the Kalman-Bucy filter
The task of ensuring electromagnetic compatibility becomes particularly relevant for mobile communication networks where a communication channel is often divided among a large number of users. To ensure the electromagnet...
Моделювання функціональних вузлів радіорелейної системи терагерцового діапазону
Наведено результати моделювання функціональних вузлів (частотні перетворювачі, фільтри, підсилювально-помножувальні ланцюги), які дозволили вперше створити лабораторний зразок прийомо-передавача для радіорелейної системи...
Особенности построения стеганографических систем радиосвязи
Анализируются различия между криптографическими и стеганографическими методами передачи информации в системах радиосвязи. Проиллюстрированы свойства разных типов сигналов с позиции скрытой передачи информации и показана...
Комплексный метод повышения доступности сервисов в программно-конфигурируемых сетях, основанный на динамической репликации
В статье предложена модель формирования и предоставления комплексного сервиса и метод динамической репликации, позволяющие повысить доступность сервисов в программно-конфигурируемых сетях. Проведен обзор общеизвестных ме...