MTU to CDN's

Vincent Bernat bernat at
Fri Jan 19 15:54:17 UTC 2018

 ❦ 19 janvier 2018 08:07 -0600, Mike Hammett <nanog at> :

> Wouldn't those situations be causing issues now, given the likelihood
> that someone with a less than 1,500 byte MTU is communicating with you
> now?

Those situations are causing issues now. If you have a MTU less than
1500 bytes, it is likely some destination are unreachable to you if you
only rely on PMTUD. People usually rely on TCP MSS for those cases.
I'll burn my books.
		-- Christopher Marlowe

More information about the NANOG mailing list