Douglas Richard Hanks Jr. is a Senior Network Engineer at Juniper Networks. He is JNCIE-ENT #213 and JNCIE-SP #875. Douglas' interests are network engineering and architecture for both Enterprise and Service Provider routing and switching. He is the author of several Juniper "Day One" books published by Juniper Networks Books. Harry Reynolds has over twenty-five years experience in the networking industry, with the last fifteen years focused on LANs and LAN interconnection. He is CCIE # 4977, and JNCIE # 3, and also holds various other industry and teaching certifications. Harry was a contributing author to Juniper Network Complete Reference (McGraw-Hill, 2002), and wrote the JNCIE and JNCIP Study Guides (Sybex Books, 2003). As as co-author he wrote Junos Enterprise Routing and Junos Enterprise Switching (O'Reilly, 2007 and 2009 respectively).
