From: Jay Hennigan (jay@west.net)
Date: Thu Jun 26 2003 - 16:00:26 GMT-3
On Thu, 26 Jun 2003, ccie2be wrote:
> A quick little config change on rtr-2 has proved your suggestion correct.
> I'm going to play around with this some more to see how much the difference
> in stratum needs to be for multiple ntp masters to sync up properly, but
> thanks for sharing your thoughts with me. It did the trick.
>
> BTW, in terms of NTP, to count the "hops", I would count the number of NTP
> servers daisy chained to one another? For example, given rtrs A, B, C, D,
> and E where E is configured to get ntp from C and C is configured to get ntp
> from A and A is the master, router E considers rtr A to be 2 hops aways?
> (Rtrs B and D just provide connectivity and aren't ntp servers). Do have it
> right?
Correct. An NTP peering relationship is a "hop" and increases the stratum
by one.
If you have an NTP peer that gets time from a stratum 1 source, it will be
a stratum 2 source. A third device getting time from the stratum 2 source
will be stratum 3 and so on.
16 is infinity, just like RIP.
-- Jay Hennigan - CCIE #7880 - Network Administration - jay@west.net WestNet: Connecting you to the planet. 805 884-6323 WB6RDV NetLojix Communications, Inc. - http://www.netlojix.com/
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