Your Question: What Operating System Does Cisco Use?
Contents

Cisco IOS (Internetwork Operating System) is a proprietary operating system that runs on Cisco Systems routers and switches. The core function of Cisco IOS is to enable data communications between network nodes.

What OS is Cisco IOS based on?

Cisco IOS is a monolithic operating system running directly on the hardware while IOS XE is a combination of a Linux kernel and a monolithic application (IOSd) that runs on top of this kernel.

Is Cisco IOS based on Unix?

Traditional Cisco IOS itself is definitely not Linux based. It is a monolithic operating system. It is completely memory resident. Everything runs in a single context and multitasking is cooperative.

Sarah Jenkins

Sarah Jenkins

Senior Technology Editor & AI Specialist

Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.

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