If you have a Cisco Modeling Labs appliance in your lab or running on a piece of dedicated hardware, you have probably noticed two browser warnings every time you log in. CML ships with self-signed certs on both the main web UI and the Cockpit management UI, and your browser will complain about both. Cisco publishes an …

If you are a network engineer who has ever stared down a change window and wished you could test the exact topology before touching production, this post is for you. I want to walk through why Cisco Modeling Labs (CML) has become one of the most used tools in my day to day, and how it has shaped the way I approach …