Thomas M. Thomas II is a Senior Network Consultant for Hired Guns. Prior to his current position, Tom has held positions with Ericsson IP Infrastructure as a Senior Network Consultant, with Mentor Technologies as an instructor, and with Cisco Systems as a Course Designer. Tom has also worked for MCI Managed Networks, AT&T Solutions, and the US Air Force. Tom is the Founder of NetCerts.com and author of OSPF Network Design Solutions, First Edition (Cisco Press), Networking Dictionary (McGraw-Hill), and CCIE Exam Cram (Coriolis).