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The physical hardware required for communication between devices on a computer network is the backbone of modern IT networking. In 2020, the revenue from Ethernet switch sales globally amounted to more than 27 billion U.S. dollars. The leading vendor, Cisco Systems Inc., controlled around 50 percent of the global Ethernet switch market worldwide .

Notable IT networking aspects

SDN and VPN are important technologies less bound by specific IT networking hardware, relying instead on software transmissions of data. The software-defined networking market is forecast to reach over 43 billion U.S. dollars worldwide in 2027 and helps operators to design, build, and maintain their networks efficiently.

Virtual private networks (VPN), on the other hand, securely extend private networks across public networks and thereby enable users to share data across those networks. By 2027, the global virtual private network (VPN) market is expected to reach over 75 billion U.S. dollars in size. Growth is driven in part by enterprises using this technology to enable their employees to access company resources from different locations.

IT networking services

In terms of services, the worldwide network management market is projected be worth over 12 billion dollars by the end of 2027. The centralization of critical network services is an essential component of the management and functionality of global networks. Network infrastructure technologies such as DNS, DHCP, and IPAM (together known as DDI) all play an essential role in this process, with vendors including Microsoft , Cisco Systems , and Infoblox providing solutions in this space

In the case of network security, the revenue number for corporate web security market worldwide is projected to surpass 5 billion U.S. dollars by 2022. Endpoint security sales are also expected to increase to over 11 billion U.S. dollars by 2022.

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