Orhan Ergun

Network Design Advisor | Author | CCDE Trainer

10+ Students passed CCDE Practical Lab exam !

orhan ergunHello Everyone!  I’m Orhan Ergun. I am a CCDE Trainer, Author and Network Design Advisor

Wouldn’t it be nice to pass Cisco CCDE exam in your first try?!

Would you like to learn Service Provider, Enterprise, Datacenter and Mobile Operator real life network design?

What about discussing real life network design with the employees of the companies such as AT&T, Amazon, Cisco and many others in the same class?

If you have answered “Yes!” to the above questions, then I suggest you keep reading, because I can help you!

You may have many CCIE but you realized that none of them gives you the credibility you need to make it into the real world. You want to be the most respectful person in your organization and shine above all your peers. You are very good at a large number of different technologies, but realized that being an expert at network designing is different and so important.

The problem is you don’t know where to start, am I right? Everybody out there only tries to teach you how to configure the protocols or devices, but definitely nobody has given you the information you need to succeed in real life network design. Vendors are always talking about their awesome products! You want to learn design, you have done your research, but you haven’t found anybody who can actually help you improve and succeed. Stop searching! You have finally landed on the right website! I am here to help you. How? Easy!

I created Network Design Course:

  • I will teach you network design principles and all the best practices,which will make you the most respectful person in your organization.
  • I will show you how real life networks look like and how big companies design their network, so to gather an idea about the bigger picture.
  • I will teach you the techniques that will improve your strategic design thinking. If you want to be the best, you need to start thinking outside the box.
  • I will provide many practical network design scenarios,which will help you to pass Cisco CCDE exam in your first try!
  • I will give you many complementary study resources,because if you are a research learner, additional resources help you to put the pieces together.
  • I will provide lifetime FREE accessto all my online design videos, books and other resources so you will continue to learn network design even after the course is over.
  • I will introduce you to other network designers in the class, so you will have design discussions, before, during and after the class together.


See what Orhan Ergun’s students are saying about DesignWorld.

daniel lardeux

I passed the CCDE Practical exam and Orhan’s CCDE course was very important contributor to my success.

Daniel Lardeux, Senior Network Consultant at Post Telecom
jason gooley

Orhan’s ability to cover the vast technical topics required for the CCDE is tremendous. He is not only very technical; he is also an amazing teacher.

Jason Gooley, System Engineer at Cisco Systems
deepak kumar

I attended Orhan’s CCDE Course and I must say the guy has exceeded my expectations in all ways in terms of quality, depth etc.

Deepak Kumar, Senior Network Engineer at HCL
michael zsiga

Orhan goes into a great level of detail to explain the design implications of each technology and the relationships with other technology that it could affect.

Michael Zsiga, Lead Architect at ePlus
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Hamed Zolghadri

CCDE #20150003

Roy Lexmond

CCDE #20150017

Daniel Lardeux

CCDE #20150039

Mohamad Haddad

CCDE #20150040

Johnny Britt

CCDE #20150036

Martin J Duggan

CCDE #20160006

Hashiru Aminu

CCDE #20160014

Anders C. Pedersen

CCDE #20160015

Muhammad Abubakar Siddique

CCDE #20160016

Syed Adeel Qamar

CCDE #20160018