[194349] in North American Network Operators' Group
G root pmtu?
daemon@ATHENA.MIT.EDU (Randy Bush)
Mon Apr 10 12:00:23 2017
X-Original-To: nanog@nanog.org
Date: Mon, 10 Apr 2017 09:00:18 -0700
From: Randy Bush <randy@psg.com>
To: North American Network Operators' Group <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
it seems that G root ops are blocking dns ops mail servers. the more i
think about that the sicker i think some folk out there are. but
anyway, anyone else seeing this kind of problem with g root?
http://dnsviz.net/d/gn/dnssec/ whines
gn/DS (alg 8, id 38486): No response was received until the UDP
payload size was decreased, indicating that the server might be
attempting to send a payload that exceeds the path maximum
transmission unit (PMTU) size. (2001:500:12::d0d,
UDP_0_EDNS0_32768_4096)
randy
