A certificate with a product
authorization key (PAK) is required before you can obtain an upgrade license.
You can use the capacity adder
licenses to increase the number of access points supported by the controller up
to a maximum of 500 access points. The capacity adder licenses are available in
access point capacities of 10, 25, 50, 100 and 250 access points. You can add
these licenses to any of the base capacity licenses of 12, 25, 50, 100 and 250
For example, if your
controller was initially ordered with support for 100 access points (base
license AIR-CT5508-100-K9), you could increase the capacity to 500 access
points by purchasing a 250 access point, 100 access point, and a 50 access
point additive capacity license (LIC-CT5508-250A, LIC-CT5508-100A, and
You can find more information
on ordering capacity adder licenses at this URL:
If you skip any tiers when
upgrading (for example, if you do not install the -25U and -50U licenses along
with the -100U), the license registration for the upgraded capacity fails.
For a single controller, you
can order different upgrade licenses in one transaction (for example, -25U,
-50U, -100U, and -250U), for which you receive one PAK with one license. Then
you have only one license (instead of four) to install on your controller.
If you have multiple
controllers and want to upgrade all of them, you can order multiple quantities
of each upgrade license in one transaction (for example, you can order 10 each
of the -25U, -50U, -100U, and -250 upgrade licenses), for which you receive one
PAK with one license. You can continue to register the PAK for multiple
controllers until it is exhausted.
For more information
about the base license SKUs and capacity adder licenses, see the respective
controller’s data sheet.