nanog mailing list archives
RE: CenturyLink
From: Matthew Huff <mhuff () ox com>
Date: Sat, 29 Dec 2018 14:51:51 +0000
We have two stratum-1 servers synced with GPS and a PTP feed from a provider that also provides PTP to market data systems, but we still have to monitor drift between system time and NIST time. Don't ask for the logic behind it, it's a regulation, not a technical requirement. ---- Matthew Huff | 1 Manhattanville Rd Director of Operations | Purchase, NY 10577 OTA Management LLC | Phone: 914-460-4039 -----Original Message----- From: NANOG [mailto:nanog-bounces () nanog org] On Behalf Of Stephen Satchell Sent: Saturday, December 29, 2018 9:34 AM To: nanog () nanog org Subject: Re: CenturyLink On 12/28/18 3:23 PM, Yang Yu wrote:
On Fri, Dec 28, 2018 at 12:05 AM Stephane Bortzmeyer <bortzmeyer () nic fr> wrote:Is this problem also responsible for the 911 outage? If so, the post-mortem analysis is not useful only for CenturyLink customers but for everyone on the west coast.Looks like most time.nist.gov servers (3 x NIST sites on AS49) are single homed on CenturyLink, anyone noticed NTP issues yesterday? https://tf.nist.gov/tf-cgi/servers.cgi
I have GPS-based Stratum 1 NTP appliances in my network, so I wouldn't see any issues. I suspect many other operators are in the same situation.
Current thread:
- RE: CenturyLink, (continued)
- RE: CenturyLink Erik Sundberg (Dec 27)
- Re: CenturyLink Stephane Bortzmeyer (Dec 28)
- Re: CenturyLink Patrick Boyle via NANOG (Dec 28)
- Re: CenturyLink...is being investigated by the FCC Anne P. Mitchell, Esq. (Dec 28)
- Re: CenturyLink...is being investigated by the FCC Patrick Boyle via NANOG (Dec 28)
- Re: CenturyLink...is being investigated by the FCC Stephen Satchell (Dec 29)
- Re: CenturyLink Yang Yu (Dec 28)
- Re: CenturyLink Patrick Boyle via NANOG (Dec 28)
- RE: CenturyLink Matthew Huff (Dec 29)
- Re: CenturyLink Stephen Satchell (Dec 29)
- RE: CenturyLink Matthew Huff (Dec 29)
- Re: CenturyLink Stephen Satchell (Dec 29)
- RE: CenturyLink Matthew Huff (Dec 30)
- Re: CenturyLink Raymond Burkholder (Dec 29)
- Re: CenturyLink Shawn L via NANOG (Dec 30)
- Re: CenturyLink Mel Beckman (Dec 30)
- RE: CenturyLink Matthew Huff (Dec 30)
- Re: CenturyLink Saku Ytti (Dec 30)
- RE: CenturyLink Matthew Huff (Dec 30)
- Re: CenturyLink Saku Ytti (Dec 30)
- Re: CenturyLink Gary E. Miller (Dec 30)