Open AccessNetwork technologies: evolution and peculiarities. Mathematical machines and systems.
Author(s) -
Ye.V. Podroiko,
Yu.M. Lysetskyi
Publication year - 2020
Publication title -
matematičeskie mašiny i sistemy
Language(s) - English
Resource type - Journals
ISSN - 1028-9763
DOI - 10.34121/1028-9763-2020-2-14-29
Subject(s) - computer science , network virtualization , network management , the internet , enterprise private network , computer network , internet connection sharing , network architecture , telecommunications , software defined networking , core network , local area network , network management station , virtualization , internet access , cloud computing , world wide web , operating system
Today corporate network is seen as a complex system and traditionally provides the set of interacting essential components, such as: Main Site – a network of head office; Remote Site (Branch) – networks of remote office; WAN – global network uniting networks of the offices; LAN – a local network; WAN Edge – a point of connection to WAN. Internet Edge – a point of connection to the Internet; Data Cen-ter – corporate centre of data processing. Some sources also regard Service Block as a component, which is a separate segment of the network with specific services. Every component of corporate network fea-tures contains individual set of technologies, each having its history of origination and development. The paper offers short review of basic technologies which form the history of development of corporate network, as well as their evolution from a set of separated network technologies to a unified multi-service network infrastructure. This unified infrastructure is inextricably linked with a global network of Internet which is both a service and a carrier for majority of modern corporate networks. The paper de-scribes origination and development of Internet, local and global networks, Wi-Fi networks and software defined networks. Corporate network has been through a long evolution from co-existence of separated technologies to modern unified intellectual network infrastructure with high security and reliable man-agement. Due to fast-moving development of information technologies the corporate networks have dynamically transformed in several directions: network functions virtualization (NFV – Network Func-tions Virtualization); utilization of SDN solutions; automation of management processes; analytics; se-curity; cloud services. In the course of such a transformation the corporate network turned into unified, flexible, application oriented infrastructure with high reliability, easily modified and expanded function-ality, single management center, unified security policies, fast and detailed analysis of internal network processes.