Bio
David Eror, Cisco Certified Systems Instructor (CCSI), has been working at NIL for more than 15 years and has been an instructor and CCNP for more than ten years. He focuses on Data Center, Service Provider, and Internet of Things technologies for enterprises and large service providers. He has spent years troubleshooting and implementing various platforms in the Cisco and multi-vendor telecom environment.
David recommends the DCACIO course because it is an effective medium-level ACI overview. He also recommends the IOSXR100 and SEGRTE201 courses because they are the foundation of modern Service Provider networks. He recommends these courses to engineers who want a technological deep dive into Cisco Software-defined storage.
David has been honored with the prestigious 2024 and 2022 Instructor Excellence Awards for his exceptional contributions as a Cisco instructor.
David’s Cisco instructor score (scale of 1-5): 4,75
My Knowledge
Technology innovation is always a thrill. Within the training, I aim to transfer knowledge about the Cisco Data Center, Service Provider, and Internet of Things areas. This includes the following technologies: Cisco ACI, Cisco VXLAN EVPN, Cisco UCS, IOS XR, IOS XE, and CURWB Industrial wireless devices and their architectures. There are continuous improvements that I would like to periodically bring closer to the audience involved in selling, designing, and maintaining these products. I would focus on both the theoretical details, but also on the demonstration in the lab. I would take special care to understand the existing gaps in the attendee’s knowledge and focus on them. In the methodology, I like to use the most effective examples, drawings, comparisons, analogies with the previous versions, video clips, and Q&As in order to use the shortest time to explain the most important facts and then build the details.
Life Outside of Work
Fun fact about me:
I compare teaching to vocal and instrumental music performance. I believe that the knowledge conveyed should be exchanged with benefit and enthusiasm. Whoever has delivered music in front of the audience knows how great the experience is when like-minded people appreciate the delivery. For an artist and for an instructor, it is more important than the money. I was lucky to establish direct contact with the audience during the delivered piano concerts, and ever since then, I have been searching for the same in teaching. Like in the world of the musical notes, the technological innovations bring a similar level of joy.
Apart from music, which has always brought significant motivation, the other important inspiration for me to choose the life of an engineer comes from the Gymnasium in the city of Karlovac. This is where the great inventor Nikola Tesla attended his teen scholar life. Later, I was walking in the park in Budapest, where he got the idea of the induction motor. However, I have probably not yet found the exact place in the park where such ideas are realized.