Rick Donato

The Full Mesh Problem Due to the BGP split-horizon rule (within iBGP), all iBGP peers within an AS must be fully meshed. Why may you ask? Whereas eBGP uses the AS-PATH for loop avoidance, iBGP neighbours do not add their ASN to the AS_PATH when sending updates. So what

VScode is an extremely popular free open-source IDE. Which is great for Network Automation. Here are 3 VSCode shortcuts that can save you a TON of time! Multi-Line Selection * Windows: CTRL+ALT+⬇/⬆ * Mac: CMD+OPTION+SHIFT+⬇/⬆ Search Across All Files * Highlight the text you want to search for. * Execute search:

Previously we looked at how to -- Style your Python Code like a Pro -- using the tool, Black. However, what about if there is a typo in your code? For example, a missing colon or closing bracket. This is where linting comes into play. Linting is the process of

For those of you who are automating your networks with Python, here's a little tool that will save you a ton of time and also make your code look like it's been written by a pro! Its called Black. Black is an awesome code formatter that

NFV, SDN, Cloud and Network Automation newsletter. Edition 002 - Dec2020

A Hands-on Guide to Multi-Tiered Firewall Changes with Ansible and Batfish (Part 1)IntroductionNow I can say, from experience, that in my opinion one of the most frustratingadmin tasks can be ACL updates on multi-tier firewall environments. Validationof the change and any troubleshooting if an ACL is still missed can

NFV, SDN, Cloud and Network Automation newsletter. Edition 001 - Nov2020

Computer systems typically consist of one or more networking devices, i.e eth0, eth1 etc. These network devices are associated with a physical network adapter, which is responsible for placing the packets onto the wire. However, in the world of virtual networking, a degree of internal plumbing is required to

Eliminate boiler-plate code with Python data classes.