Home > Authors

Jeal Jimenez

Carlos Alcantara, CCIE R&S and Wireless No. 16523, is a technical solutions architect in the Network Transformation group at Cisco Systems. His primary job responsibilities include working with Cisco’s large enterprise customers to develop and implement innovative solutions and architectures that focus on access technologies. Carlos joined Cisco in 2005, and throughout his different roles, wireless has always been the main area of specialization and passion for him. Carlos holds a bachelor’s degree in electronics and communications as well as a master’s degree in telecommunications management from Monterrey Institute of Technology and Higher Education. He is a dual CCIE No. 16523 in Routing & Switching and Wireless.


Nicolas Darchis, CCIE Wireless No. 25344, joined the Wireless & AAA Cisco TAC team in Belgium in 2007, where his main focus was troubleshooting wireless networks, wireless management tools, and security products. Since 2016, Nicolas has been working as a technical leader for wireless at the same technical assistance centre in Brussels; he has shifted a big part of his focus to improving product serviceability of new and upcoming products, as well as new software releases. He is also a major contributor to online documentation of Cisco wireless products and has participated in many of the wireless “Ask the Expert” sessions run by the Cisco support community. Nicolas is CCIE Wireless No. 25344 since 2009 and, more recently, he has achieved CWNE No. 208.


Jérôme Henry, CCIE Wireless No. 24750, is principal engineer in the Enterprise Infrastructure and Solutions Group at Cisco systems. Jerome has nearly 15 years of experience teaching technical Cisco courses in more than 15 countries and 4 languages to audiences ranging from bachelor degree students to networking professionals and Cisco internal system engineers. Focusing on his wireless experience, Jerome joined Cisco in 2012. Before that time, he consulted and taught heterogeneous networks and wireless integration with the European Airespace team, which was later acquired by Cisco to become its main wireless solution. He then spent several years with a Cisco learning partner developing wireless courses and working on training material for new wireless technologies. He is certified wireless networking expert (CWNE No. 45), CCIE Wireless (No. 24750), and CCNP Wireless. He developed several Cisco courses focusing on wireless topics (IUWNE, IUWMS, IUWVN, CUWSS, IAUWS, LBS, CWMN lab guide) and authored several wireless books and video courses (IUWMS, CUWSS, Wi-Fi Troubleshooting, and so on). Jerome is also an IEEE 802.11 group member, where he was elevated to the grade of Senior Member in 2013, and also participates in Wi-Fi Alliance working groups. With more than 10,000 hours in the classroom, Jerome was awarded the IT Training Award Best Instructor silver medal. He is based in RTP, NC.


Jeal Jiménez, CCIE Wireless No. 31554, is a customer support lead engineer for the Cisco High-Touch Technical Services (HTTS) department specializing in wireless LAN technology. Prior to joining the HTTS department, he worked as a customer support engineer focused on wireless LAN in the Technical Assistance Center before he was promoted to an escalation leader and trainer, working also as a Cisco lab admin during these years. Jeal’s technical expertise in the area of wireless LAN technologies began in 2005, working on all possible scenarios of a Cisco WLAN deployment, from small and simple to big and complex, as well as unique setups of different interoperability with multiple diverse mobile devices and network/security infrastructures. He has worked directly with Cisco engineering and development to get code fixes, serviceability, and feature enhancements and collaborated in the release of new HW/SW. He has also contributed to Cisco documentation and training.


Jeal holds a bachelor’s degree in systems engineering and the certifications CWNA, CWSP, CWAP, CWDP, CWNE No. 182, VCP6-DCV, CCNA, CCNP R&S, and CCIE Wireless (No. 31554), as well as ITIL Foundation in IT Service Management.


Federico Ziliotto, CCIE R&S and Wireless No. 23280, joined Cisco in 2007 as a customer support engineer (CSE) at the Technical Assistance Centre (TAC) in Belgium. He specialized in solving high-severity issues for worldwide customers with particular focus on wireless networks, network admission control (NAC) setups, identity-based networking (IBN), 802.1X, AAA solutions and Cisco TrustSec. He is double CCIE No. 23280 in Wireless since January 2009 and Routing & Switching since April 2011. In June 2011 Federico moved to a new position as systems engineer for Cisco France, collaborating with the presales teams in security and mobility related projects. In March 2014 he became a consulting systems engineer, supporting account teams with technical expertise on security and mobility solutions. Federico has been a speaker at Cisco Live since 2012 for technical seminars on network access control with ISE and breakout sessions on wireless, for which he earned the Distinguished Speaker recognition. He is also one of the authors of the former CCIE Wireless Exam (350-050) Quick Reference Guide published by Cisco Press.