I have more than 19 years experience ,
I dedicated my time to learning cisco technologies and solutions,Design ,Implement and troubleshoot is main job and also I have many project as system [login to view URL] area of interest is Security, Data center ( ACI - Traditional )
Security Solutions like Firepower(FTD) , ASA , Stealthwatch , AMP , ESA , ISE , ETA , ...
and of course like anyone else R&S and specially SD_WAN
i love also collaboration solutions CUCM , WEBEX, UNITY, PRESENCE and ...
So I will be happy to help others!