Mark Gallo is a Systems Engineering Manager at Cisco within the Channels organization. He has led several engineering groups responsible for positioning and delivering Cisco end-to-end systems, and for designing and implementing enterprise LANs and international IP networks. He has a bachelor of science degree in electrical engineering from the University of Pittsburgh and holds Cisco CCNP and CCDP certifications. Mark resides in northern Virginia with his wife, Betsy, and son, Paul.

Joe Harris, CCIE No. 6200, has both CCIE Security and Routing and Switching certifications and is a Commercial Systems Engineer with Cisco specializing in advanced routing and security. He has more than 12 years of experience in the field of designing and implementing Cisco network solutions. Joe holds a bachelor of science degree from Louisiana Tech University and resides with his wife and two children in Frisco, Texas.