Cisco 5921 Embedded Services Router Feature License
The Cisco 5921 Embedded Services Router (ESR) feature license extends Cisco IOS Software capabilities to mobile and embedded network environments. This license is designed for organizations deploying the Cisco 5900 Series ESR on small, low-power Linux-based platforms that require enterprise-grade IP routing and advanced networking services in portable communications systems. Whether you're managing mobile deployments, remote site connectivity, or embedded network infrastructure, this feature license unlocks critical routing and service capabilities for mission-critical applications.
Key Features & Capabilities
- Cisco IOS Software router functionality optimized for embedded and mobile platforms
- Advanced IP routing services for low-power, Linux-based systems
- Enterprise-grade networking capabilities in compact form factors
- Support for mobile and portable communications infrastructure
- Seamless integration with Cisco 5900 Series ESR hardware
- Feature-rich routing protocols and network services
Technical Specifications
| Specification |
Details |
| Manufacturer |
Cisco Systems |
| Product Family |
Cisco 5900 Series Embedded Services Router |
| Part Number |
L-FL-5921-RL5-K9= |
| License Type |
Feature License |
| Platform Support |
Cisco 5921 ESR |
| Operating System |
Cisco IOS Software |
| Target Environment |
Mobile, embedded, and low-power Linux platforms |
| Status |
End-of-Sale / End-of-Life |
Frequently Asked Questions
What is the Cisco 5921 Embedded Services Router feature license used for?
The Cisco 5921 ESR feature license activates advanced routing and networking services on the Cisco 5921 platform, enabling IP routing, service integration, and enterprise networking capabilities on mobile and embedded Linux-based systems.
Is the Cisco 5921 Embedded Services Router still supported?
The Cisco 5921 ESR is under end-of-sale and end-of-life status. For current deployments, Cisco recommends evaluating newer router platforms, though existing licenses may continue to function on deployed systems.
What platforms does this Cisco IOS software router license support?
This feature license is designed for the Cisco 5921 ESR running on small, low-power Linux-based platforms. It extends Cisco IOS Software functionality to mobile and embedded network environments requiring advanced routing services.
How does the Cisco 5900 Series ESR compare to standard routers?
The Cisco 5900 Series ESR is optimized for mobile and embedded applications with minimal power consumption and compact form factors, making it ideal for portable communications systems where traditional routers are impractical.
