About the Author

Brandon J. Carroll has been in the networking industry for more than six years. He is a certified Cisco Systems instructor with Ascolta Training Company, where he teaches many of the certified Cisco courses. Prior to joining Ascolta, he was an ADSL specialist with GTE Network Services, as well as a technical lead/trainer, a field engineer, and customer zone technician. He has published proprietary documentation internally to GTE, and has also done in-house course development. Brandon holds CCNA, CCNP, and CSS-1 certifications.