[194127] in North American Network Operators' Group
Re: any issue with Centurylink yesterday
daemon@ATHENA.MIT.EDU (Ken Matlock)
Fri Mar 17 12:35:36 2017
X-Original-To: nanog@nanog.org
In-Reply-To: <CAP-guGUX=S=ixcvQg6hOw+D9ByDNWmFKcapaqUKdArg9_fVKpg@mail.gmail.com>
From: Ken Matlock <matlockken@gmail.com>
Date: Fri, 17 Mar 2017 10:35:33 -0600
To: William Herrin <bill@herrin.us>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
Yeah, it sounds like it. ICMP echo/echo reply was working end-to-end, but
it's possible they were blocking the Type 4 messages somewhere (I didn't
resort to packet captures to get THAT in-depth).
Ken
On Fri, Mar 17, 2017 at 10:15 AM, William Herrin <bill@herrin.us> wrote:
> On Fri, Mar 17, 2017 at 11:39 AM, Ken Matlock <matlockken@gmail.com>
> wrote:
>
>> I know most of the day yesterday my Centurylink DSL (Denver, CO) I was
>> having.... odd... issues, but only to some sites, and intermittent. I'd
>> have issues getting content from a URL (but pinging the host would be
>> fine,
>> and manual telnet to TCP/443 would work).
>
>
> Hi Ken,
>
> When I hear those symptoms my brain jumps to path MTU discovery.
>
> Regards,
> Bill Herrin
>
>
>
> --
> William Herrin ................ herrin@dirtside.com bill@herrin.us
> Dirtside Systems ......... Web: <http://www.dirtside.com/>
>
