About this blog

“It would be nice to write this into a blog, to help the next person who has the same problem!”

This is what I say, every time I come across a new challenge or problem and I cannot find the related documentation. Or, when I found an undocumented strange behavior on a network equipment or protocol. As network engineer since 1996, I said this phrase millions of times. So, here it is now: I created this blog.

I will talk here mostly about Cisco, Meraki and Huawei network systems, the related softwares for network planning, design, operations, troubleshooting and automation, and about my learning experiences in networking, software scripting and cloud.



About me

My name is Jerome Tissieres, I live in Switzerland and I am network engineer since 1996.

Jerome Tissieres

My current position is senior network systems engineer at Swisscom.
I am doing consulting and building network solutions in routing, switching, wireless and security technologies based on Cisco, Huawei and Meraki products for enterprise customers. I also build managed WAN MPLS/VPN circuits for business customers in my area, and participates to the development and enhancements of Swisscom enterprise products and services.

Before that, I held many different network engineer positions since 1996. You can find my complete professional experience on my linkedin page.

During that time, I also kept an important place for learning and self-study. I love learning, study and practice new technologies, and I also like to share this knowledge with other people. Working as a network engineer for over 20 years, I have constantly learned: on network technologies of course, but also on network design, best practices, troubleshooting methods, configurations and fault management, monitoring and scripting. And I am still learning almost every day! For example, on network automation, software defined networking (SDN), Python scripting and network functions virtualization (NFV). This is why I have a passion for this job: I always learn something new!



Industry Certifications

I currently hold the following certifications:


  • Cisco Network Programmability Design and Implementation Specialist
  • CCNP R&S
  • CCDP
  • CCNA R&S
  • CCDA
  • CCIP (Cisco Certified Internetwork Professional, replaced by CCNP-SP in 2014)



  • CMNA (2015, refresh done in 2018)
  • CMNO #00177



  • HCSA IP Network





This is true, I am not CCIE. I passed three times the CCIE R&S written exam (versions 4.0 and 5.0) and I failed four times at the CCIE Routing and Switching lab exam in Brussels. Once at the exam version 4.0 in 2013, and three times at the version 5.0 between 2016 and 2017. Now, I have stopped chasing my CCIE numbers to be able to learn other technologies.

During this long journey, I took two Narbik Kocharians / Micronics’s bootcamps and completed multiple times the lab workbooks of INE, iPexpert and Narbik. I also did many practice labs from Cisco expert-level training (formerly Cisco-360). This was a fantastic experience during around five years and I learned a lot!



Personal Side

On the personal side, I am married to a wonderful wife, I have three beautiful children and my mother tongue is French.
Since 2010, I live in a beautiful place called “The Magic Valley” or Vallemaggia, in the Italian part of Switzerland. I speak Italian, French and also English with my colleagues and customers. English is no my mother tongue, this may explain some spelling mistakes on this blog, my apologies in advance.

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