4 ms·
[citation needed] But more seriously, PMTUD usually just works, so people tend to forget about it. This is actually good - it's a sign that things have stabili
by majke 12y ago
[citation needed]
But more seriously, PMTUD usually just works, so people tend to forget about it. This is actually good - it's a sign that things have stabilised. It's only the unusual setup at CloudFlare caused the problems, not problems with MTU itself.
The world would be a better place if people understood how things they rely on work. That's I wrote this article.
- zAy0LfpBZLC8mAC 12y agocitation for what? ;-) That PMTUD just works is not my experience, especially with IPv4, there are lots of servers/sites out there that break if you don't mangle the MSS if you are behind some link with an MTU < 1500--unfortunately. But yeah, let's hope that your article will help spread the word that PMTUD is important, and that completely filtering ICMP is idiotic--in any case it has helped remove an "incompetent" flag for your company in my brain ;-)