Is the Cisco DNA Subscription Mandatory? Yes to Buy It, No to Keep It
Written and maintained by Haink's network infrastructure team · Verified against Cisco ordering and configuration guides, 22 August 2026 · authorized-channel, serial-verified
This question gets asked in two different situations and they have opposite answers, which is why the internet disagrees with itself about it.
"Do I have to buy the subscription with the hardware?" Yes. Cisco requires it at the point of purchase and you cannot order the switch or router without one.
"Do I have to keep paying for it?" No. When the term ends the hardware keeps working on its perpetual licence. You lose the subscription features, not the network.
Everything else is detail — but the detail is where the money is, because what you lose at expiry differs sharply between switching and routing, and because falling back to the perpetual licence is not a free action.
At purchase: mandatory, and the tier must match
Cisco's Catalyst 9200 ordering guide states it twice, in slightly different words. "The subscription license, which comes with a perpetual license, is required with a hardware purchase." And: "Both Network Stack licenses and Cisco Catalyst or Cisco DNA Software subscription licenses are mandatory at the time of purchase."
The same applies on the routing side. The Catalyst 8300 and 8200 ordering guide: these platforms "must be ordered with a mandatory Cisco DNA subscription license or Catalyst Routing Essentials license."
There is a matching rule alongside it — "a software term license aligning with hardware SKU suffix (-E or -A) is mandatory" — which closes the obvious workaround. You cannot buy Advantage hardware and pair it with the cheaper Essentials subscription. Terms available are three, five and seven years.
On routers, the cheap alternative is disappearing.
Catalyst Routing Essentials — the seven-year, lower-cost alternative to a DNA subscription for autonomous-mode Catalyst 8200 and 8300 — went end-of-life on 27 July 2026. End-of-sale is 25 January 2027, and the bulletin states there is no replacement. After that date the mandatory licence on those platforms is a DNA subscription.
At expiry: the switch keeps switching
Cisco answers this directly in its subscription FAQ: "If a customer does not renew their software subscription, does their network stop working? No, the switch will continue to function with all Network Stack features intact."
What stops is the add-on layer — automation through Catalyst Center, AI network analytics, the assurance dashboards, LAN automation. The routing, switching, segmentation and encryption capabilities you bought with the perpetual Network Essentials or Advantage licence are unaffected, because that licence has no expiry date.
But there is a reload
The mechanism is worth knowing before you plan an estate around letting subscriptions lapse. Cisco's configuration guide: add-on licences "can be deactivated, followed by a switch reload, to discontinue use. The switch then continues operating with base license capabilities."
So the fallback is documented and supported, and it requires a maintenance window on every switch. On a two-hundred-switch access layer that is a project, not an afterthought — and it is the reason "we'll just let it expire" is a plan that needs scheduling rather than a decision that costs nothing.
On routers the answer is different, and depends on the mode
This is the part that catches people who reason from switching experience.
| Mode | What happens when the subscription lapses |
|---|---|
| Autonomous / on-premises | Cisco: "customers will still be able to use base routing features using the Command-Line Interface (CLI). However, customers will not be able to use the WAN management and control capabilities of Cisco Catalyst Center." |
| SD-WAN (controller mode) | Cisco: "WAN management functions will no longer operate. Customers must renew their subscription-based licenses to continue to get access." |
An SD-WAN deployment is therefore genuinely dependent on the subscription in a way a switch is not. The overlay is the management plane; when the licence stops, the management stops. Anyone building a business case on "we can drop the subscription later" needs to know that this option exists for autonomous routers and effectively does not for SD-WAN.
The line that gets missed in every TCO model
The DNA subscription does not entitle you to IOS-XE software updates for the perpetual network stack. That is a support contract — SmartNet Total Care, or a Catalyst (DNX) subscription which bundles support in.
The practical consequence: an estate with a current DNA subscription and no support contract has automation and analytics, and no right to download the software image that fixes a bug. Teams discover this at the worst possible moment, which is during an incident. The distinction is covered in full in SmartNet versus warranty.
This is also the strongest argument for looking at the Catalyst (DNX) family rather than DNA when comparing quotes: DNX includes hardware and software support inside the subscription, so the second line item disappears. See the licensing guide for the comparison.
So how should you actually decide the term?
Given that the subscription is mandatory at purchase and optional afterwards, the decision is about term length and about what happens at the end of it.
- If you use Catalyst Center — if the automation and assurance are load-bearing in operations — the subscription is not optional in practice and the term should match the hardware life. Seven years on a seven-year switch is normally the lowest annual cost.
- If you do not use Catalyst Center, and the switches are managed by CLI and a monitoring tool, a shorter term is defensible — but plan the deactivation and reload, and check whether you are relying on the subscription for support.
- If the estate is SD-WAN, treat the subscription as permanent operating cost. Letting it lapse takes the management plane with it.
- Either way, price the support line separately, or choose a subscription family that includes it. A DNA subscription with no SmartNet is a gap, not a saving.
- On Catalyst 8200 and 8300 staying autonomous, decide about Routing Essentials before 25 January 2027.
Not sure what your quote actually commits you to?
Send it over. We separate the perpetual licences from the subscriptions and the support, show what expires and what does not, and price the alternatives — within one business day.
Frequently asked questions
Can I buy a Catalyst 9300 without a DNA subscription?
No. Cisco's ordering guide states that the subscription licence is required with a hardware purchase and that both the network stack and the subscription are mandatory at the time of purchase.
What happens to my switch when the DNA subscription expires?
It keeps working with all Network Stack features intact. You lose the add-on features and Catalyst Center integration. To formally discontinue the add-on licence you deactivate it and reload the switch.
Does my router stop working when the subscription expires?
Not in autonomous mode — base routing continues through the CLI, and you lose Catalyst Center WAN management. In SD-WAN mode the WAN management functions stop operating, so the subscription is effectively permanent for SD-WAN deployments.
Does the DNA subscription include software updates?
No. Software updates for the perpetual network stack come from a support contract — SmartNet Total Care, or a Catalyst (DNX) subscription which bundles support. A DNA subscription alone does not entitle you to the image.
Can I buy Advantage hardware with an Essentials subscription?
No. Cisco requires the software term licence to align with the -E or -A hardware suffix.
Is Catalyst Routing Essentials still available?
Until 25 January 2027. It went end-of-life on 27 July 2026 with no replacement named. It applies only to autonomous mode — it is not compatible with controller mode.
Related
- Cisco licensing explained — the full structure, and DNA versus Catalyst subscriptions
- SmartNet versus warranty — where software updates actually come from
- Do Cisco licences transfer with used hardware?
- ISR 4000 to Catalyst 8000 — the routing licence model in detail
- Catalyst 2960-X replacement — where the subscription is the migration cost
- Enterprise switches · Routers · Cisco stock and lead times
Sources
- Cisco — Catalyst 9200 ordering guide (mandatory at purchase, suffix matching, terms)
- Cisco — Catalyst 8300 and 8200 ordering guide
- Cisco — Available licences on Catalyst 9000 (deactivate and reload)
- Cisco — Catalyst and DNA software subscription FAQ (network does not stop working)
- Cisco — DNA subscription FAQ for routing (autonomous versus SD-WAN at expiry)
- Cisco — Routing Essentials end-of-life bulletin