Cisco L-SL-39-DATA-K9 Data License for Cisco 3900 Series Router E-delivery

About This Product

Buy Cisco L-SL-39-DATA-K9 | ISR 3900 Series DATA Technology Package License | E-Delivery

The L-SL-39-DATA-K9 is a Cisco ISR 3900 Series DATA Technology Package License — the essential upgrade that activates advanced IP/MPLS routing features on Cisco 3900 Series Integrated Services Routers. This Cisco ISR 3900 data license unlocks MPLS, L2VPN, Layer 2 Tunneling Protocol v3 (L2TPv3), BFD, RSVP, Mobile IP, and IP SLAs, making it the ideal choice for high-performance service provider edge, large enterprise WAN aggregation, and multi-tenant deployments that require carrier-grade routing at scale.

Also referenced as SL-39-DATA-K9 or L-SL-39-DATA-K9=, this Cisco 3900 Series DATA license is a perpetual, Right-to-Use (RTU) technology package that upgrades the default IP Base feature set to full DATA-level routing. The license enables Multi-Protocol Label Switching (MPLS), Bidirectional Forwarding Detection (BFD) for sub-second convergence, Resource Reservation Protocol (RSVP) for traffic engineering, L2VPN/L2TPv3 for Ethernet extension services, and SNA Switching (SNASw) for legacy mainframe connectivity. Whether you are deploying a managed CE router or building a multi-site MPLS WAN, the ISR 3900 DATA license e-delivery provides all the advanced routing protocols you need — no hardware upgrade required.

✅ Key Features

• • MPLS support — Label Distribution Protocol (LDP), MPLS forwarding, and MPLS VPN for service provider and large enterprise deployments
• • L2VPN and L2TPv3 — Layer 2 Ethernet extension and pseudowire services for transparent LAN interconnection over IP/MPLS backbones
• • BFD and RSVP — fast sub-second convergence with Bidirectional Forwarding Detection and traffic engineering with Resource Reservation Protocol
• • Mobile IP and PfR — Mobile IP tunneling and Performance Routing for intelligent WAN path selection based on real-time link conditions
• • IP SLAs — advanced service-level agreement monitoring for proactive network performance measurement and reporting
• • Perpetual RTU license — one-time purchase, honor-based activation via CLI, no recurring subscription fees
• • E-Delivery — license entitlement delivered electronically, fast activation with no shipping delay
• • Ideal for high-performance service provider edge, large enterprise WAN aggregation, and managed CE deployments at scale

Compatible Platform

The L-SL-39-DATA-K9 is compatible with all Cisco ISR 3900 Series routers, including Cisco 3925 and Cisco 3945. Also compatible with the 3900E Series (Cisco 3925E and Cisco 3945E). Requires a Cisco Universal IOS image (universalk9-mz) version 15.0 or later with the DATA technology package activated. This is a platform-specific technology package — the ISR 2900 Series requires SL-29-DATA-K9. Please verify your router model before purchase.

Information Needed

To generate your license file, please send the output of show license udi from your Cisco ISR 3900 Series router to support@switchlicense.com, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.

License Delivery

This Cisco ISR 3900 DATA technology package license is delivered electronically. Once your device UDI is confirmed, we will send you the license entitlement by email. No physical shipment is required — simply activate the license via CLI on your ISR 3900 router and your advanced routing features are immediately available.

Warranty

We provide a 100% working warranty on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via PayPal for your peace of mind.