Cisco 4000 Series Integrated Services Router

Published by Harmony August 21,2020

Cisco 4000 Series Integrated Services Router: All your branch office needs with just one device.


​If you are deploying all-digital capabilities for your enterprise branch, consider the Cisco® 4000 Series Integrated Services Router (ISR) with comprehensive features to meet all business needs. The 4000 series ISR combines many necessary IT functions, including networking, security, computing, storage, and unified communications functions. With this one platform, all your needs can be met. This means that your capital expenditures, operating expenses and administrative expenses will be greatly reduced, and your total cost of ownership will be reduced accordingly.



This series of platforms adopt modular design and support flexible upgrade. You don't need to make any changes to your device to add new services. The 4000 Series also supports multiple application-aware services running at the same time and maintains WAN performance of up to 2 Gbps, even during high traffic loads. The backplane architecture of this series of routers enables high-bandwidth inter-module communication of up to 10 Gbps. The 4000 series includes five platform products: 4451, 4431, 4351, 4331 and 4321 ISR.


Smart services reduce bandwidth consumption


The 4000 series supports Cisco Intelligent Wide Area Network (IWAN) functions, providing comprehensive flow control and security features. With WANIWAN, you will be able to use cheaper other types of links to implement all enterprise-class features of Multiprotocol Label Switching (MPLS) VPN. For example, you can get per-application traffic management, WAN optimization, and VPN tunneling capabilities for the entire Internet and cellular networks. As you add more connections, these features can also be applied to other less expensive services. You can activate new router services on demand with a simple license change.

Remote application installation and management capabilities enable you to provide a comprehensive computing and network experience without the need to place local IT staff in branch offices. This feature is especially useful for new or smaller sites where IT staff are not yet placed. With all the above features and the converged environment and stable high-speed performance provided by the 4000 series, you will be able to deploy branch office services at a pace that matches your business development.


For more details about Cisco 4000 series ISR, please contact your sales, if you need to compare different models, please visit