Yes, Cisco DNA (Digital Network Architecture) subscriptions are generally required when using Cisco virtual controllers. This applies mainly to the Catalyst 9800-CL virtual wireless controller, Cisco DNA Center VM, and SD-Access virtual control-plane components. Each of these uses Cisco's Smart Licensing model, which requires purchasing DNA licenses for full functionality.
Quick Overview: DNA Licensing Requirements by Virtual Controller Type
| Virtual Controller Type | DNA License Required? | Notes |
| Catalyst 9800-CL (Virtual Wireless Controller) | Yes | DNA license required for all connected APs; legacy licenses not supported. |
| Cisco DNA Center VM (Network Management) | Yes | Requires DNA subscription for software usage; does not replace AP licenses. |
| SD-Access Virtual Control-Plane Nodes (vManage, vBond, vSmart) | Yes | DNA subscription required to enable automation, segmentation, and policy features. |
| Legacy Cisco vWLC (Virtual WLC) | No | Does not require DNA licensing but is end-of-life and lacks modern features. |
What Happens If You Don't Buy DNA or Your Subscription Expires?
If you do not purchase a DNA license or your subscription expires:
- Your Catalyst 9800-CL and APs will continue to operate with a built-in perpetual license, but you will lose access to advanced DNA features such as automation and analytics.
- Adding new APs remains possible within device limits.
- Software updates and innovation may be limited without an active DNA subscription.
- Legacy virtual controllers may not support newer features and lack Smart Licensing.
Frequently Asked Questions (FAQs)
Q1.Do I need to buy DNA licenses for every AP on a Catalyst 9800-CL virtual controller?
Yes. Every access point connecting to a Catalyst 9800-CL requires a Cisco DNA license under Smart Licensing.
Q2.Can I use a Catalyst 9800-CL virtual controller without DNA licenses?
The controller can boot and be configured, but APs will not register or operate without valid DNA licenses.
Q3.Does Cisco DNA Center VM replace the need for AP DNA licenses?
No. DNA Center VM requires its own subscription license but does not substitute for AP licenses required by wireless controllers.
Q4.What is the difference between DNA subscriptions and perpetual licenses?
DNA subscriptions provide ongoing access to new features, updates, and cloud-based services. Perpetual licenses allow basic core functionality but lack these advanced capabilities and innovations.
Q5.Are DNA licenses needed for SD-Access virtual controllers?
Yes, SD-Access virtual control-plane nodes require DNA subscriptions to enable policy, automation, and segmentation features.