Cisco has long used open source and Linux internally as a tool for supporting its own network. Network administrators at Cisco a long time ago developed a open-source tool, running on Linux servers, to manage the company’s extensive network of thousands of printers and print servers.

What is Cisco used for?

Cisco provides IT products and services across five major technology areas: Networking (including Ethernet, optical, wireless and mobility), Security, Collaboration (including voice, video, and data), Data Center, and the Internet of Things.

What is a Cisco device?

Cisco Internetwork Operating System (IOS) is a family of network operating systems used on many Cisco Systems routers and current Cisco network switches. … IOS is a package of routing, switching, internetworking and telecommunications functions integrated into a multitasking operating system.