Why is BGP so important to the Capital I Internet?
At the core of this interconnected web of networks is the Border Gateway Protocol (BGP), a fundamental routing protocol that plays a pivotal role in directing internet traffic. In this post, I will explore the significance of BGP and why …
What is BGP next-hop-self and why you should care?
In this blog post, we’ll demystify the concept of next-hop-self in BGP, why it’s crucial, and how it affects routing decisions. What Is Next-Hop-Self in BGP? In BGP, the “next hop” is the IP address used to reach a particular …
Unpopular opinion: BGP should accept smaller than a /24
For years, we have heard of the depletion of IPv4 address space on the Internet. At the same time, more and more networks are coming online. Out of these new networks, we have an ever-increasing number wanting to participate in …
Packets Down Range #23:Events, new backbone routes, data center fire
Patreon Edition is available here Data Center News •Databank starts construction on ATL4. . The colocation facility will feature 200,000 square feet of raised floor space and four megawatts of power. •Don’t let a tree cause an outage for your …
Problems with Borger Gateway Protocol (BGP)
Border Gateway Protocol (BGP) is the Internet’s dominant inter-domain routing protocol, and as such, it is a critical component of the Internet’s infrastructure. However, BGP, like any other technology, has flaws. The following are some of the most common BGP …
Packets Down Range #13:Acquistions and other news
One of the most incredible things this week is the updates to the cloud flare speed test. Lots of things were analyzed, with a lot of questions on why. I will have a blog post separately about this. Sponsor ISP …
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 …
ARIN consulting package end-of-the-year special
From now until the end of the year, I am running the following consulting package, including the following ARIN services. -Helping you set up your organization within ARIN-Helping you set up your Point of Contact (POC) records-Getting your own ASN-Getting …
Learn BGP for $6.99 for My Patreons
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 …
A tool to find out if BGP is lying to you
APNIC has a bog article on detecting “bgp lies”. https://blog.apnic.net/2021/05/24/a-tool-to-detect-bgp-lies/Do you ever wonder whether you can really trust other networks, such as your provider(s) and peers? More precisely, wouldn’t you like to be able to tell if the traffic you send always …