Specializing in IP routing protocols, MPLS, and IPv6, Jeff Doyle has designed or assisted in the design of large-scale IP service provider networks throughout North America, Europe, Japan, Korea, Singapore, and the People's Republic of China. Jeff is the author of CCIE Professional Development: Routing TCP/IP, Volumes I and II; OSPF and IS-IS: Choosing an IGP for Large-Scale Networks; and is an editor and contributing author of Juniper Networks Routers: The Complete Reference.

Jeff has presented numerous corporate seminars, and has spoken at NANOG, JANOG, APRICOT, IEEE/OWRA, QUESTnet, and IPv6 Forum conferences worldwide.

He works for one of the worlds largest telecoms providers in Dallas Texas where he is considered a leading expert in network architecture, design and implementation. He has worked for some of the best and biggest companies in the world including Cisco Systems and Google.

Farai is currently helping to develop the CCNP content as well as several e-books available on the site including 101 CCNA Labs. You will also find him answering questions on the forum so please visit there and post your questions.

Farai travels all over the world on business but lives in Dallas with his family.

How to Network was created by Paul Browning back in 2003.

Paul worked as a police officer in the UK from 1989 to 2000 and then left to pursue a career in the IT industry.  He started out on a helpdesk doing basic desktop support.  He studied hard and passed his CCNA and MCSE and was quickly offered a role working at Cisco TAC in the UK.  Paul worked there for two years until it was moved out to India.

By this time Paul had passed his CCNP and CCIE written exams.

Frustrated by the poor quality of most CCNA books and courses Paul began work on CCNA Simplifed - Your Complete Guide to passing the CCNA exam which took three years to write and was finished in 2005.  CCNA Simplified has helped hundreds of people pass their CCNA exam and more importantly go onto enjoy a successful career in the IT industry.