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Cisco IOS

Your Network, Your Way

Gain services integration and application programmability. (5:08 min)

What Is IOS?

Cisco IOS is the world's leading network infrastructure software, integrating innovation and business-critical services for enterprise networks. Cisco IOS:

  • Allows enterprises to build resilient, cost-effective standards-based infrastructures end to end
  • Delivers thousands of features network-wide to meet the unique needs of evolving enterprises
  • Supports the increasing demand for service orchestration, application awareness, and simplicity

Software Releases

Cisco IOS 15 Releases

Cisco IOS 15 Releases

Read the Latest Release Notes

Highlighted Features

Intelligent Path Control with PfR

Intelligent Path Control with PfR

Performance Routing (PfR) complements traditional routing technologies by using IOS infrastructure intelligence to improve application performance and availability.

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