Packets DownRange
Here I discuss general technology trends across various market segments, including Internet Service Providers. What are some of the geeky things going on around the Capital I Internet.
I have updated to a newer theme and ditched the “featured post” at the top, which had no active link. I am still searching for a theme that highlights posts similar to what the Ghost blog system does on https://blog.fd-ix.com/ . I kind of like the categories. It’s one of those things is I could … Read more
A good data center is not about lobby photos or vendor language. It is about clean power, working cooling, clear cable paths, useful remote hands, and gear that can be repaired without fighting the building.
How BGP communities help ISPs control inbound traffic, reduce costs, and steer routes between peers without relying on AS path prepending.
Russ White is teaching a class over at O’Reilly about Computer Network Design Complexity and Tradeoffs.
2 minutes read time Author: Justin Wilson Path hunting in BGP shows up when the network loses a route and has to figure out what comes next. You do not usually notice it during steady state. You notice it when traffic starts taking odd paths, and latency does not line up with what you expect. … Read more
The network edge is one of those terms that sounds precise until you try to pin it down. Ask a few engineers where the edge is, and you will get a few different answers.
A hyperscaler is defined by its scale, control, and consistency, not by branding or marketing. These organizations build and run compute infrastructure
TCP Authentication Option (TCP-AO) comes in. It is defined in RFC 5925 and exists to protect TCP sessions from spoofing and reset attacks.
Traffic rarely flows where you expect. BGP picks the “best” path, but that does not always mean the fastest or cheapest one.
Effective network engineering is intentionally unobtrusive. When systems remain stable, support tickets are not generated. If routing functions correctly, inquiries are absent. When redundancy operates as intended, disruptions are imperceptible.
If AI can perform many tasks previously handled manually by engineers, do certifications still hold value? The answer depends on the original intent behind certifications.
I have distilled down many of the categories on this site to just a handful. This should help my readers find and keep track of topics. For a while I have used categories instead of tags. Its a by-product of using WordPress for over 15 years now. You don’t know what you don’t know. On … Read more