Well, hello there…

July 23, 2018
It’s been a while
by Pablo Narváez

It’s been a while…

Since my last post. I’m glad I still have regular visitors although I haven’t posted new content for a few months now.

I just updated my profile and the ABOUT section to reflect my new responsibilities at Palo Alto Networks. I still work quite a lot with SDN, automation, data center and networking, and had to dedicate some more time to Cybersecurity and Cloud.

Since I knew I had to stop blogging until I felt comfortable at my new job (I changed jobs by the way!), I just gave up the wordpress premium account although I kept the domain name.

Once I fully comeback to my blogging endeavors, I will reconsider to upgrade my account so you can enjoy a better look & feel.

For my next posts, I will consider some of the following topics:

  • Arista MSS with Palo Alto Networks NGFW (Next Generation Firewall)
  • Palo Alto Networks VM-Series Bootstrap and Cumulus Networks Fabric Automation with Ansible
  • Aruba Networks CX-OS Automation with ALE (Analytics and Location Engine)
  • Some Palo Alto Networks NGFW and Traps endpoint testing across a fully automated Arista/Aruba Fabric (Malware samples might be used!)

Thanks for reading!



Arista Layer3 Spine-Leaf w/ VXLAN (L3LS-V): Lab Part 1

July 11, 2017
Lab, Introduction
by Pablo Narváez

This is the first post in a series where I’ll go deep on how VXLAN is deployed on Arista switches and how it operates in a Layer 3 Ethernet fabric.[Post-2]network_diagram-1

For this lab, I will create a self-contained virtual environment so physical appliances will not be used at this time. Please note, the IP Storage, Services and Border Leafs will not be deployed yet; once we are done with VXLAN, I will add new features and functionalities including the extra Leafs.

Hardware and versions to be used in my lab:

• 2x HPE DL-360 ProLiant Gen8 server
– 2x 64bit 8-core Intel Xeon processors (E5-2650)
– 128GB RAM
– 4x 300GB SAS drives (sda, RAID 0)
– 2x 1TB SAS drivers (sdb, RAID 0)
– 1x iLO dedicated GE network port
– 4x embedded GE network ports
– 1x 10GbE dual-port network module
• 2x HPE DL-360 ProLiant Gen8 server
• Ubuntu 16.0.4 LTS with KVM
• VMware iESXi 6.5
• Arista vEOS 4.17.5M

I will provide detailed instructions for what to do (and configure) on every device. Equipment and operating systems versions may change along the way, so I will make appropriate notes wherever needed.

As stated before, I am going to follow this up with a series of articles focusing on the different infrastructure layers; as those articles are released, the links will be updated here:

  • Lab Part 1: Introduction (this article)
  • Lab Part 2: Virtual environment setup (next up)
  • Lab Part 3: Production servers deployment
  • Lab Part 4: Configuring the Ethernet fabric
  • Lab Part 5: Running and testing VXLAN

Hello World

Article, my first post
by Pablo Narváez

July 10, 2017

Here it is, my first post.

*** Just a thought ***
I follow several tech blogs, many of them have been inspiring (especially a recent post by Ethan Banks from Packet Pushers) so… another reason I decided to write more formally is just to speak  my mind…

Those other humans in your life are the victims of your one-track mind. Ultimately, you, too, are a victim as those relationships slip away. Anything uninvested in withers to nothingness. You’ll find that virtual routers, technical textbooks, and certification plaques are cold companions.”

Thanks for stopping by!