[ntp:questions] Re: OT Re: SNTP and requirement 1PPS signal

Maarten Wiltink maarten at kittensandcats.net
Thu Mar 16 08:27:17 UTC 2006

"Jed Clear" <clear at alum.mit.edu> wrote in message
news:44189AFB.98B4E2B9 at alum.mit.edu...
> mike wrote:

>> RFC 2030 says:
>>   It is strongly recommended that SNTP be used only at the extremities
>>   of the synchronization subnet. SNTP clients should operate only at
>>   the leaves (highest stratum) of the subnet and in configurations
>>   where no NTP or SNTP client is dependent on another SNTP client for
>>   synchronization. SNTP servers should operate only at the root
>>   (stratum 1) of the subnet and then only in configurations where no
>>   other source of synchronization other than a reliable radio or modem
>>   time service is available.
> Is it just me or has "subnet" taken on a new meaning in this RFC?

Yes and no. It's more or less lost that meaning over the last ten years.
Other documents have used the term "overlay network".

Maarten Wiltink

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