[ntp:questions] Observation with ntp4.2.8 at p4-request inputs

Sowmya Manapragada skoganty at gmail.com
Sat Dec 12 07:26:18 UTC 2015


Thanks all for your comments, but if that's expected , I need to depend on
something other than the system / peer status words for trapping the
correct  sequence of events?
what I mean is even when my server is not reachable and system status word
rv 0 = 0615 ..it means to the client (0 leap_none, 6- sync_ntp,1  event,
5-clock_sync).. and  only after 7 to 8 minutes rv 0 status changes and
gives the correct status that the "server peer" is unreachable, same with
the client associations status: only after 6 to 8  minutes  client shows it
has lost the server peer ( not reachable)  ..am I missing something here ?

thanks,
Shyam
On Sat, Dec 12, 2015 at 12:52 PM, Sowmya Manapragada <skoganty at gmail.com>
wrote:

> Thanks all for your comments, but if that's expected , I need to depend on
> something other than the system / peer status words for trapping the
> correct  sequence of events?
> what I mean is even when my server is not reachable and system status word
> rv 0 = 0615 ..it means to the client (0 leap_none, 6- sync_ntp,1  event,
> 5-clock_sync).. and  only after 7 to 8 minutes rv 0 status changes and
> gives the correct status that the "server peer" is unreachable, same with
> the client associations status: only after 6 to 8  minutes  client shows it
> has lost the server peer ( not reachable)  ..am I missing something here ?
>
> thanks,
> Shyam
>
> On Fri, Dec 11, 2015 at 5:30 PM, <questions-request at lists.ntp.org> wrote:
>
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>>    1. Re: Observation with ntp4.2.8 at p4-request inputs (brian utterback)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Thu, 10 Dec 2015 08:01:14 -0500
>> From: brian utterback <brian.utterback at oracle.com>
>> To: elliott.ch at comcast.net, "'Sowmya Manapragada'"
>>         <skoganty at gmail.com>,   questions at lists.ntp.org
>> Subject: Re: [ntp:questions] Observation with ntp4.2.8 at p4-request
>>         inputs
>> Message-ID: <5669779A.7040507 at oracle.com>
>> Content-Type: text/plain; charset=windows-1252
>>
>> Yes, that is the expected behavior.
>>
>> On 12/10/2015 6:55 AM, Charles Elliott wrote:
>> > FWIIW, I have seen a similar phenomenon, only with one server.  If the
>> time
>> > server on my network stops dispensing time for some reason, the
>> computers on
>> > the LAN will still stay sync'ed to its last observation long after the
>> reach
>> > indicator goes to zero.  Not sure if that is right.
>> >
>> > Charles Elliott
>> >
>> > -----Original Message-----
>> > From: questions
>> > [mailto:questions-bounces+elliott.ch=comcast.net at lists.ntp.org] On
>> Behalf Of
>> > Sowmya Manapragada
>> > Sent: Wednesday, December 9, 2015 10:26 PM
>> > To: questions at lists.ntp.org
>> > Subject: [ntp:questions] Observation with ntp4.2.8 at p4-request inputs
>> >
>> > Hello All,
>> > Just wanted to check if what I am observing with4.2.8p4 is as expected
>> or I
>> > missed out something because I don't see this with older 4.2.8p2/p3 :I
>> have
>> > a client having 2 NTP servers (both servers in my LAN ), client makes
>> one as
>> > a peer ( to which it is currently synced) and other as a candidate; the
>> peer
>> > (server) goes down, my client at least waited 7 to 8 min to reject this
>> peer
>> > server and choose the available one... Checked in Mein berg monitor tool
>> > also and rv0 command ... The status word just don't show that client
>> > rejected server until 7 to 8 minutes... Wire shark correctly shows no
>> > packets exchanged between my clint and peer ( right from moment when
>> server
>> > which is down)..my client ntp.conf is standard with an iburst...
>> > Thanks in advance
>> > Shyam
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