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I signed up for Orhan’s CCDE training. This training is very technically detailed and the use-cases, quizzes, scenarios, and mind maps are all great resources in the overall training program.

Orhan teaches his students to think like a network designer by applying technology to meet business requirements and design specifications.

Nicholas Russo
Network Consulting Engineer (CCDE/CCIEx2), Cisco

I'm a longtime fan of Orhan's courses. His level of instruction is unsurpassed.

Whether you are pursuing a certification or just looking to deepen your expertise, the depth, quality, and professionalism of Orhan's courses will get you to the finish line.

Jeff Doyle
Author of TCP/IP Vol 1 and 2, OSPF and IS-IS, Member Of Technical Staff at Apstra

I attended Orhan’s CCDE Bootcamp. I am CCDE now!

You can tell Orhan has a great deal of experience, it really comes through when he presents his design case studies and the CCDE Practical scenarios.

Martin J. Duggan
Network Architect at AT&T;, Ciscopress Author CCDE #20160006 & CCIE#7942

I passed the CCDE Practical exam and Orhan’s CCDE course was very important contributor to my success. I attended the CCDE course of Orhan Ergun in July and it was exactly what I needed, Orhan is taking the pain to break down the different technologies.

Daniel Lardeux
Senior Network Consultant at Post Telecom

Hi Orhan. I passed the CCDE exam on February 22. I read everything that you put on your Self Paced CCDE Training course and it was very helpful in my success. Thank you very much.

Laurent Metzger
3xCCIE/CCDE Senior Network Architect

Thanks Orhan very much for this course. It helped strengthen my “Network design mind”.

Jennifer Pai
Network/Security Engineer at KNET Technology

Training by Orhan is not a CCDE preperation training only. It will be useful for engineers which are dealing with design. You want to pass CCDE exam or learn network design, then don’t look at anywhere else!

Ruslan Silyayev
Solution Architect at R.I.S.K Company

Orhan Ergun’s CCDE course was really very good. CCDE Level Intelligence was delivered very well and with very useful case studies and the scenarios, I am thankful to Orhan for all his help!

Sameer Meher
Solutions Architect at 23 Wards/Japan

If anyone wants to understand network design and architecture, also pass CCDE exam , I recommend you to attend Orhan’s online courses! I am a CCDE now but learning is a journey, we will be together in your other courses too Orhan!

Ken Young
Senior Technical Architect Province of Nova Scotia, 2xCCIE #41597 | CCDE #20170047

Hi Orhan I passed CCDE Practical exam on November 2017 ! I really enjoyed your materials and quizzes and use cases. They were definitely helpful in my preparation. Thanks a lot !

Bryan Bartik
Sr. Systems Engineer at CompuNet – CCDE 20170059

I attended Orhan’s CCDE Training in Istanbul and it was very helpful in my preparation. I passed the exam recently and I want to say Thank you Orhan! For those who want to pass the CCDE exam, definitely start with Orhan!

Giedrius Trapkauskas
Network Solutions Architect at Liberty Global – CCDE 20180004

Hi Orhan I wanted to pass along my appreciation for the outstanding training material. I used the online CCDE training provided by Orhan as well as the In-Depth-CCDE book and passed the exam in February 2018. Thank you Orhan!

Jeff Patterson
CCDE# 2018::11

I signed up for Orhan’s CCDE Self paced Course. This course, along with the CCDE In Depth book, helped me for my CCDE Practical as well as Written exams. It pushed me to ask the "WHY" questions and allowed me to grow as a network architect. The use cases, quizz, and compare charts are all great.

Mehdi Sfar
Network and Security Architect / CCDE #20210003 | CCIE R&S; #51583

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No. We don’t charge automatically. But if you want to extend your subscription, you can either do it from the Pricing page, or from your student dashboard.

You will not be charged automatically when your subscription expires. That’s why cancellation is not necessary on our website

You can enroll in our courses either by purchasing them Lifetime or by Subscribing from this page.

A subscription gives you access to multiple courses, based on the bundle option you select, for a limited amount of time and the Lifetime access doesn’t have any time limit.

Subscription provides a price advantage but if you are looking to access every update even after years for an individual technology or certification course, then Lifetime is a good option as well.

Also, you can purchase a subscription and lifetime access to some of the courses, at the same time.

Please send an email to for the other payment options.

For more than 5 people, please contact sales@orhanergun.ent for special pricing and team subscription advantages.

It will be available soon.

For the majority of the courses, we have both workbooks and practice labs. But please make sure the availability of them by checking the last section/sections of each course. We share the course resources other than the videos, at the end of each course as a separate section.

For the Courses, we don’t offer a refund. Thus, please carefully watch the preview videos and the workbooks, labs, and any other resources that we offer with the courses. If you are fully convinced, then subscribe and join us!

Yes, you can purchase each course individually. Just open the Courses page and type the course name in the search box, go to the Course detail and Buy from there for a lifetime.