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Ivan Pepelnjak

Ivan Pepelnjak, CCIE #1354 Emeritus, is a 30-year veteran of the networking industry with 25+ years of experience in designing and implementing large-scale service provider and enterprise networks. Since 1990 he has also been teaching about advanced technologies. He’s the author of several Cisco Press books, prolific blogger and writer, occasional consultant, and the author of a series of highly successful webinars.

He is currently NIL’s chief technology advisor, focusing on large-scale data centers and cloud deployments, software-defined networking (SDN) and data centers (SDDC), and network function virtualization (NFV). If you want to be in the loop about his new projects, follow his personal ipSpace blog.




  • Cisco Certified Internetwork Expert – R & S #1354 - Emeritus