Re: NTP

Joseph,
do you have some numbers to share about this ?
(eg: remote time.nist.gov vs local router synched to time.nist.gov)

Going to an outside NTP server over some network latency will impact
the time reference quality, and having a local intermediate reference
will, at least, be better for synch between local hosts, I would expect.

NTP does many things to compensate all this too. And in the end I guess
it depends on what do you need the time for. It might be your best bet
is a GPS receiver :)

-Carlos

Joseph L. Brunner @ 06/11/2011 20:02 -0300 dixit:
> A router makes a poor ntp server; it's not a very accurate clock.
>
> Better to stand up a real time server or simply have every device go right out to a real ntp server (like us.pool.ntp.org) or if you need an IP, use the
> Ip for time.nist.gov
>
> (do not use time.windows.com, also not very accurate)
>
> -Joe
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Paul Tim
> Sent: Sunday, November 06, 2011 4:23 PM
> To: Cisco certification
> Subject: NTP
>
> Hi All
> I tested NTP configuration in our lab running on cisco router 2611. In real
> world scenario where do you place the NTP Router in the network. To secure
> the box what should I look-out for.
>
> thanks
> Paul
>
>
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-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net