Professional profile

Hi, thanks for your interest. My name is César Cabrera, I’m Systems and computing engineer from Universidad Tecnológica de Pereira (Colombia), I have more than 12 years of experience in education and telecommunications sectors. I was professor for 6 years, time in which created this blog where I’ve shared routing and switching information for more than 10 years. I’ve been Cisco CCNA instructor and IP/MPLS instructor for Huawei with a special focus on mobile operators in latam market (México, Colombia, Perú, Ecuador among others). I’ve worked as engineer in all transport network lifecycle (design, deploy, operating, optimizing and, of course, training) over mono and multivendor environments (Cisco, Huawei, ALU/Nokia, entre otros). Actually I’m working as resident engineer for Nokia in AT&T México.

Tittle and certificacions:

  • Systems and computing engineer, Universidad Tecnológica de Pereira (UTP), 2006.
  • CCNA (Cisco-Certified Networking Associate), valid through 2019
  • CCNP (Cisco-Certified Networking Professional), valid through 2015
  • HCND-HCNA (Huawei-certified network associate) valid through 2018
  • CCAI (Cisco-Certified Academy Instructor), since July 28th/2006
  • ITQ (Instructor Trainer Qualified) for CCNA since Nov./2011 (Valid)
  • COURSERA (Internet) CERTIFICATIONS: Gamification, Entepreneurship

This is a personal blog for spanish natives. So if you understand spanish, you’re welcomed to read, comment and share. I hope you enjoy the reading as I enjoyed writing during more than 10 years.


I’d like to offer any of the contents I’ve been teaching during the last years. Please take a look (content on spanish with course titles in english)