The Mess we call BGP
Ever wonder why BGP seems to be such a complicated protocol to administer? It seems pretty straightforward to set up. Some commands, and you have a BGP session. Easy huh? BGP is one of those things where the more BGP …
Ninjas and network admins
From my early youth, Ninjas have been a fascinating subject for me. They are what attracted me to my main hobby of collecting G.I. Joes. Movies like American Ninja, Ninja Magazine, and the 80’s Ninja craze fueled this passion. Several …
Great Job Jotform
After successfully logging into Jotform today, I received the below email. Way to go, Jotform, for successfully deploying IPv6. More companies should do this. #win #kudos
DNS in ISP networks and why you should care
If you are not familiar with how DNS works, please go and read this article and watch the accompanying video. In this article we will talk about the different types of DNS servers an ISP will encounter and the design …
Cloudflare Internet speedtest
Check your internet speed with Cloudflare’s very own internet speed test. https://speed.cloudflare.com/
The arguments against 0.0.0.0/8
The arguments against using 0.0.0.0/0 have been pretty much quashed by the following: Allow 0.0.0.0/8 as a valid address rangeThe longstanding prohibition against using 0.0.0.0/8 dates back to two issues with the early internet. There was an interoperability problem with …
Musings of an ISP Engineer part 2
Part 1 can be viewed here -Always check layer1 first. Your momma told you it’s the simplest things in life. Most times it is that simple. -After that check layer 2. If a backhaul or fiber link can’t push data …
Auto mapping your Cisco Network
This content is for Patreon subscribers of the j2 blog. Please consider becoming a Patreon subscriber for as little as $1 a month. This helps to provide higher quality content, more podcasts, and other goodies on this blog.To view this …