Welcome to orhanergun.net!
I’m Orhan Ergun, a network architect focused on service providers, data centers, virtualization, cloud, and network security. I have more than 15 years IT related experience, and I have worked on many medium and large-scale network design and deployment projects.
I have been teaching Cisco network design concepts such as CCDE and Pre-CCDE for the last two years, and created DesignWorld learning platform to share my network design experience and knowledge with the networking community.
My aim is to teach you everything you need to know about network design, network security, Cisco exams, and other vendor certifications. I will be posting, sharing, and updating important topics on network design via this site, so that you can learn essential IT concepts with ease. To enjoy this boon, I recommend regularly visit orhanergun.net and subscribe to my newsletter to get our latest content first.
Should you have any question be it on network design or Cisco exams, or any query about IT, do not hesitate to contact me. You can also find me as a host on the packetpushers community podcast channel.
The majority of my students successfully passed the CCDE Practical exam. Click here for their feedback about my products and CCDE classes.
Last but not least, in my spare time I prepare CCIE and CCDE Written Exam Questions for Cisco Systems as an external subject matter expert.
Also , I spend a lot of time with my sweet son 🙂