Certs
We had a major failure in a very good complex Cisco networks with about 20 vlans, several call managers, several Unity voicemail servers, 3 ASA firewalls, IDS, , riverbed accelerators, forescout security, etc.
The provider we had with contract dispatch several technicians and no one was able to find out the problem we had with some tunnels and other network stuff.
Another provider dispatch a guy who is CCIE and fix the problem in 2 hours. He spend 1 hour making diagrams and anotations, gather info from cisco devices, etc. When everything was clear for him, he not only fix the issue, he setup the devices to be fault tolerant.
After the fix, I spoke with this guy. He say he learn more by experience, but the specific items he fix in our office, was learn during ccie training. So certs are really important in some cases.
