[ntp:questions] NTP on LAN

Steve Kostecke kostecke at ntp.org
Sun Sep 28 12:22:18 UTC 2008

On 2008-09-28, David Woolley <david at ex.djwhome.demon.co.uk> wrote:

> Steve Kostecke wrote:
>> Nonsense.
>> A single ntpd can be configured in Orphan Mode to serve as the
>> "server" for a time island.
> I hadn't considered the degenerate case. However, if one looks at the
> key selling points for orphan mode, in the documentaion, one finds
> that they all depend on having multiple orphans at the same stratum:
>> | There are many disadvantages using the local clock driver:
>> | multiple source redundancy is not possible and the subnet is
>> | vulnerable to single-point failures. Orphan mode is intended to
>> | replace the need for
> If it really has benefits in contexts where there is only one orphan
> mode server, the documentation needs amending to mention them.

The Distribution Documentation is maintained by one person; you'll have
to contact him about this.

Anyone who is interested is welcome to contribute to the Community
Supported Documentation at http://support.ntp.org/support

> Note two orphans at the same stratum aren't possible here, as the 
> requirement included a strict precedence and two at different strata is 
> another degenerate case.

It is possible to set the orphan strata to enforce precedence.

There is no requirement for members of an orphan mode group to operate
at the same stratum. 

Steve Kostecke <kostecke at ntp.org>
NTP Public Services Project - http://support.ntp.org/

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