Networking Software

Flexible. Fast. Fun.

See what's possible with new APIs, data on demand, and smarter, faster networks. (2:12 min)

Your Network, Your Way.

Get cutting-edge technology and industry-leading functionality with Cisco Networking Software (IOS, XE, XR, and NX-OS). The ability to share software and maintain consistent features while allowing for reusable code, components, and more helps your business, your network, and your teams automate tasks faster and create new services or applications easier than before.

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Technical webinars: new software, new technology, valuable information.

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Networking Software Systems



  • Integrates technology, business services, and hardware support
  • Reduces operational spending
  • Optimizes return on investment
  • Improves business productivity



  • Supports next-generation platforms
  • Runs as a single daemon within a modern Linux operating system
  • Separates the data plane and control plane
  • Improves services integration



  • Focuses on the needs of service providers
  • Designed for the dynamic network usage requirements of services
  • Offers flexible programmability for dynamic reconfiguration



  • Modular and programmable for an agile data center infrastructure
  • Optimized for both physical and virtual data center environments
  • Continuous system operation, permitting maintenance and upgrades

Core Technologies


IPv6 expands the number of network address bits from 32 bits (in IPv4) to 128 bits, which provides more than enough globally unique IP addresses for every networked device on the planet.

Cisco Modeling Labs

Cisco Modeling Labs is a scalable and extensible software platform for designing, simulating, and testing network models.

onePK (One Platform Kit)

Discover what's new with Cisco onePK, which helps deliver consistency of features across Cisco platforms, modular components, and more.

Locator/ID Separation Protocol (LISP)

LISP is a routing architecture that provides new semantics for IP addressing.