Air-ct5500-k9-8-3-150-0 Portable -

Let’s break down the version 8.3.150.0 :

Supports up to 500 access points and 7,000 clients. Throughput: Delivers 8 Gbps of system throughput. air-ct5500-k9-8-3-150-0

Assuming you have a Cisco 5508 or 5510 controller running an older version (e.g., 7.6.x or 8.0.x), here is the step‑by‑step upgrade process. Let’s break down the version 8