[email protected] wrote:
> at&t just doesn't have much of a clue, when it comes to
> Network Time.
For a long time, it has appeared that they don't have clues,
or don't care about lots of things. {Whats new?}
> for years, they had clocks running on NIS+ servers,
> mainly to keep time in sync on the network devices.
>
> The "new" at&t ... launched U-Verse, which had insane
> timing requirements, hence the build of the Anycast
> ntp servers (ntp1.sbcglobal.net/ntp2.sbcglobal.net).
> Most of the U-Verse STBs sync to these ...
> but not the network equipment!
I though those existed before SBC borged ATT,
certainly well before uverse?
They are routinely several dozen ms out (for years).
> The network hardware, talks directly to the stratum 1 clock(s).
> Correction, most of the network equipment talks to the
> Richardson stratum 1..
Are any of those the 12.230.208.### & 12.230.209.### ones?
Seems like most stuff uses those 4? servers.
> Apparently, nobody but me still uses the SNFC21 or WLFRCT
> stratum 1 clocks :p
IIRC WLFRCT didn't return mru.
> I strongly suspect, after I told Darth Felo to take my job,
> and shovel it ....
Sounds fun (I guess).
> NOBODY has been minding the clocks, at all.
Sounds to me, like normal operations for them (Shrug).
> The RCSNTX stratum 1 (151.164.60.81) is almost always 50
> seconds off now.
I think you mean Milli-Seconds,
& I'd say that is typical for several of their ntp servers,
for at least several years.
> I'd be willing to bet nobody has so much as performed
> one iota of maintenance on that system, since I deployed it,
> in 2008.
(Shrug)
> There is another stratum 1 clock source, in Wallingford, CT.
> So far, I've never seen any of the anycast nodes so much
> as ask it for time!
> I find it to be MUCH more reliable: st1gs-ntp3.wlfrct.sbcglobal.net
>
> Unless someone gets a swift kick in the hiney up in the 'new'
> at&t ... I'd avoid the stratum 1 clock in RCSNTX
> (st1gs-ntp.rcsntx.sbcglobal.net) and the anycast clock nodes
> that sync off it (ntp1.sbcglobal.net/ntp2.sbcglobal.net)
>
> The stratum 1 clocks ARE open to any clients, however they
> are restricted and controlled, somewhat.
> My initial configs seem to still be in place.
> Though, sometimes I think someone's foo!bar'd the SNFC21 clock,
> as it's over 60 seconds out-of-whack, pretty consistently.
I don't recall the SNFC21 ntp server,
however again I think you mean Milli-Seconds.
I wasn't aware they were generally telling people about the
st1gs-ntp.rcsntx & st1gs-ntp3.wlfrct ntp servers.
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