Cisco NX-OSis the operating system specifically developed forCisco Nexus series switches, which are widely used in modern data centers. NX-OS is optimized forscalability, high availability, and virtualization features.
It differs from IOS and IOS XE (used in traditional routers and switches) and IOS XR (used in carrier-grade platforms). NX-OS includes advanced features such as Virtual Port Channels (vPC), FabricPath, and integrated Layer 2/3 capabilities tailored for data center networks.
[Reference:Supporting Cisco Devices for Field Technicians (FLDTEC) – Cisco IOS Software Basics, ===========]
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