Paul Cernick has over 10 years of network design consulting experience working on large scale IP internetworks in mixed vendor environments. In addition, Mr. Cernick worked as an Engineer for Juniper Networks providing support to a Tier 1 ISP on technologies such as MPLS, BGP, and OSPF. In the past, Mr. Cernick has worked as a Cisco Certified Systems Instructor teaching advanced IP routing concepts and design strategies throughout the country and he published a book on the subject "Cisco IP routing Protocols" by IDG Books. Mr. Cernick holds Cisco Certified Internetwork Expert #5383, a certification held by less than 15,000 people worldwide. His interests include creating dynamic and interactive classroom scenarios that mimic real world IP networking environments to better prepare students for careers in the IP network design field.