Change process

1. Open ticket/set ticket to "in progress"
2. 
   
   1. If template change: Update template in lab first, test and then go to prod
   2. If settings change: Update settings in prod instance
3. Dry run, if change might have a big impact implement on just a single device first or ask a colleague to verify diff as well
4. Notify NOC if something might break
5. Live run
6. Check monitoring
7. Update/close ticket

Firmware upgrade process

1. Open ticket/set ticket to "in progress"
2. Verify in lab and document expected downtimes
3. Upgrade isolated building/location first, wait 1 day
4. Upgrade first half/partition of network
5. Upgrade second half/partition of network
6. Check monitoring
7. Update/close ticket

Add more things...