Orhan Ergun,CCDE Trainer, Author and Network Design Advisor Orhan Ergun is award winning Computer Network Architect, CCDE Trainer and Author. Orhan has well known industry certificates CCIE # 26567 and CCDE #20140017. Orhan has more than 15 years of networking experience and has been working on many medium and large-scale network design and deployment projects for Enterprise and Service Provider networks. He has been providing consultancy services to African, Middle East and some Turkish Service Providers and Mobile Operators for years. Orhan has been teaching Cisco network design concepts such as CCDE and Pre-CCDE for many years, and created best CCDE Training Program to share his network design experience and knowledge with the networking community. 10s of his students successfully passed the CCDE Practical exam so far and Orhan produces 30% of the CCDEs each year. Orhan is sharing his articles and thoughts on his blog www.orhanergun.net. All the training and consultancy services related information can be found from his website. He is a father, a husband and a networking geek! Orhan lives in Qatar with his wife, Halise and their son Efe. Twitter : www.twitter.com/OrhanErgunCCDE