The author will go through step by step presentation of how to use and apply and use OSPF protocol in various network designs. The author will demonstrate how easily OSPF can be implemented in Point-to-Point, Point-to-Multipoint, Virtual links, security configurations. This course is intended for CCNA and CCNP level students and who are moving towards the implementation phase of network design in medium to large networks. This course will provide that confidence level.