any issue with Centurylink yesterday

Guys, Is there any issues with centurylink yesterday? Through out day, peering from major iSPs to Centurylink had higher latency yesterday. I looked out now, it seems to settle down for now. Tatsuya

There may have been other events, but we were notified of a fiber cut in the Nashville area that impacted a few ckts for us around 6:30PM easter. -Scott ________________________________________ From: NANOG [nanog-bounces@nanog.org] on behalf of T Kawasaki via NANOG [nanog@nanog.org] Sent: Friday, March 17, 2017 8:35 AM To: NANOG Subject: any issue with Centurylink yesterday Guys, Is there any issues with centurylink yesterday? Through out day, peering from major iSPs to Centurylink had higher latency yesterday. I looked out now, it seems to settle down for now. Tatsuya The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you receive this in error, please contact the sender and destroy any copies of this document.

Yeah, not sure that was related, as my issues started earlier in the day (about 8am-9am Mountain time). Either way it all seems fine today, no hiccups, no issues. so whatever it was got resolved. Ken On Fri, Mar 17, 2017 at 9:02 AM, Pennington, Scott < scott.pennington@cinbell.com> wrote:
There may have been other events, but we were notified of a fiber cut in the Nashville area that impacted a few ckts for us around 6:30PM easter.
-Scott ________________________________________ From: NANOG [nanog-bounces@nanog.org] on behalf of T Kawasaki via NANOG [ nanog@nanog.org] Sent: Friday, March 17, 2017 8:35 AM To: NANOG Subject: any issue with Centurylink yesterday
Guys, Is there any issues with centurylink yesterday? Through out day, peering from major iSPs to Centurylink had higher latency yesterday. I looked out now, it seems to settle down for now.
Tatsuya The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you receive this in error, please contact the sender and destroy any copies of this document.

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). Latencies were *slightly* higher than normal (36ms to a site vs 18ms normal), but I just chalked it up to 'Centurylink' and figured eventually it'd resolve itself. This morning it all seems well again, so no idea WTF the problem was (honestly I didn't look at it too much, as I was more motivated to go out and enjoy the gorgeous weather instead). Ken On Fri, Mar 17, 2017 at 6:35 AM, T Kawasaki via NANOG <nanog@nanog.org> wrote:
Guys, Is there any issues with centurylink yesterday? Through out day, peering from major iSPs to Centurylink had higher latency yesterday. I looked out now, it seems to settle down for now.
Tatsuya

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/>

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/>
participants (4)
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Ken Matlock
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Pennington, Scott
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T Kawasaki
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William Herrin