[j-nsp] NTP service
Paul Goyette
pgoyette@juniper.net
Tue, 3 Sep 2002 17:13:48 -0700
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RE: [j-nsp] NTP serviceDaylight Savings Time is automatically enabled for
the locally
configured timezone, based on the timezone rules.
-----Original Message-----
From: Javier Alvira [mailto:jalvira@nortelnetworks.com]
Sent: Tuesday, September 03, 2002 4:58 PM
To: Paul Goyette; juniper-nsp@puck.nether.net
Cc: Josef Buchsteiner; lediaz@eurocomercial.es
Subject: RE: [j-nsp] NTP service
Thanks Paul, it worked! I had to correct the timezone offset... It seems
that Juniper itself modified the initial right time as soon as I configured
the timezone, and I didn't notice it before. Now the time is ok (1 hour
less), and the Juniper is, at long last, in the syncing process!
By the way, the daylight saving time setting, is configurable
somewhere...?
Thanks,
Javier
-----Original Message-----
From: Paul Goyette [mailto:pgoyette@juniper.net]
Sent: martes, 03 de septiembre de 2002 20:15
To: Alvira, Javier [CAST:2541:EXCH]; juniper-nsp@puck.nether.net
Cc: Josef Buchsteiner; lediaz@eurocomercial.es
Subject: RE: [j-nsp] NTP service
Your offset is -355644 millisecs, or 355.6 seconds. since
the field is limited to 7 chars including the - sign, I
much rather suspect that the offset is really 3556 seconds,
or just under 1 hour.
Make sure your manual setting of the time accomodates any
time zone and/or summertime/dalight saving time adjustment.
-----Original Message-----
From: juniper-nsp-admin@puck.nether.net
[mailto:juniper-nsp-admin@puck.nether.net]On Behalf Of Javier Alvira
Sent: Tuesday, September 03, 2002 11:55 AM
To: juniper-nsp@puck.nether.net
Cc: Josef Buchsteiner; lediaz@eurocomercial.es
Subject: RE: [j-nsp] NTP service
Thanks to all of you for your answers.
The truth is that I already manually set the time in order to be <128
secs close to the NTP reference server (10.128.0.20), which actually is just
a NTP server. Other devices querying it are properly in sync...
The "show ntp association" shows this:
remote refid st t when poll reach delay offset
jitter
============================================================================
==
10.128.0.20 .GPS. 1 u 40 64 177 6.716 -355644
4000.00
Thanks in advance for your comments,
Javier
-----Original Message-----
From: Josef Buchsteiner [mailto:josefb@juniper.net]
Sent: martes, 03 de septiembre de 2002 17:22
To: lediaz@eurocomercial.es; Alvira, Javier [CAST:2541:EXCH];
juniper-nsp@puck.nether.net
Subject: RE: [j-nsp] NTP service
At 05:38 PM 9/3/2002, Luis Eduardo Díaz Zazo wrote:
>Hello:
>
>I think the problem does exist. Although Asim and Yi-Kuo suggest the
reason
>is that 128 seconds difference, if I understood Javier, he already
took that
>in mind and made himself sure that the difference didn't exist.
>
>I tried it in my company's bench and found the same problem as Javier
did.
>
>I think the problem is as follows: while trying to synchronize a
juniper to
>another juniper, the server always answers with an NTP response
packet with
>its reference clock field set to zero, according to the packet
analysis I
>did. So the client doesn't accept it as a good clock. But I tried to
>synchronize a juniper to another vendor's router that did answer with
an NTP
>response packet with a non-zero reference clock and it did
synchronize.
>
>I presume it's a software bug in the server.
Luis,
Juniper can not act as a reference Server on it's own.
So you need to have a proper reference server to be
able to synchronize. This is how it is working since
day one and not a software bug.
I don't know if this was the case in the initial email.
regards
Josef
> I'm using 5.1R2.4 worldwide.
>
>Unfortunately enough, one can't trace this with juniper's trace
flags, since
>there isn't any for NTP.
>
>Regards,
>
>-----------------------------------------------------------
>Luis Eduardo Díaz Zazo Tel: +34 914 359 687
>Eurocomercial I&C S.A. Fax: +34 914 313 240
>Valentín Beato 5 mailto:lediaz@eurocomercial.es
>E-28037 Madrid
>España - Spain http://www.eurocomercial.es
>-----------------------------------------------------------
>
>
>-----Mensaje original-----
>De: juniper-nsp-admin@puck.nether.net
>[mailto:juniper-nsp-admin@puck.nether.net]En nombre de Javier Alvira
>Enviado el: lunes 2 de septiembre de 2002 17:52
>Para: juniper-nsp@puck.nether.net
>Asunto: [j-nsp] NTP service
>
>
>Hi all
>I would like to know whether there is something special when
configuring a
>NTP server in a Juniper (M-10, 5.0R1.4). This is what I configured:
>
>
>time-zone Europe/Lisbon;
>ntp
>
> boot-server 10.128.0.20;
> server 10.128.0.20;
>}
>-------------------------------------
>
>
>The "monitor traffic interface fe-0/0/0" shows this (10.128.0.20 is
the NTP
>server, inside customer's network):
>15:25:48.737589 Out xx.yy.zzz.44.ntp > 10.128.0.20.ntp: v3 client
strat 0
>poll 6 prec -20 [tos 0x10]
>15:25:48.745207 In No-L2-hdr 10.128.0.20.ntp > xx.yy.zzz.44.ntp: v3
server
>strat 1 poll 6 prec -19
>-----------------------------------
>
>
>But this is the output for "show ntp status":
>
>
>status=c011 sync_alarm, sync_unspec, 1 event, event_restart,
>processor="i386", system="JUNOS5.0R1.4", leap=11, stratum=16,
>precision=-20, rootdelay=0.000, rootdispersion=6.105, peer=0,
>refid=0.0.0.0, reftime=00000000.00000000 Thu, Feb 7 2036
6:28:16.000,
>poll=6, clock=c119f9e3.d22c343b Fri, Aug 30 2002 15:04:19.820,
state=1,
>phase=0.000, frequency=0.000, jitter=0.000, stability=0.000
>-----------------------------------------------------------
>
>
>So it seems it's not working... In fact, the initial difference of 16
secs
>(<128) has widened to 36 secs in 4 days...
>Any input will be welcome!
>Thanks,
>Javier
>
>_______________________________________________
>juniper-nsp mailing list juniper-nsp@puck.nether.net
>http://puck.nether.net/mailman/listinfo/juniper-nsp
_______________________________________________
juniper-nsp mailing list juniper-nsp@puck.nether.net
http://puck.nether.net/mailman/listinfo/juniper-nsp
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<HTML><HEAD><TITLE>RE: [j-nsp] NTP service</TITLE>
<META http-equiv=3DContent-Type content=3D"text/html; =
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<BODY>
<DIV><SPAN class=3D871191100-04092002><FONT face=3D"Courier New" =
size=3D2>Daylight=20
Savings Time is automatically enabled for the =
locally</FONT></SPAN></DIV>
<DIV><SPAN class=3D871191100-04092002><FONT face=3D"Courier New" =
size=3D2>configured=20
timezone, based on the timezone rules.</FONT></SPAN></DIV>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
<DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B> Javier Alvira=20
[mailto:jalvira@nortelnetworks.com]<BR><B>Sent:</B> Tuesday, September =
03,=20
2002 4:58 PM<BR><B>To:</B> Paul Goyette;=20
juniper-nsp@puck.nether.net<BR><B>Cc:</B> Josef Buchsteiner;=20
lediaz@eurocomercial.es<BR><B>Subject:</B> RE: [j-nsp] NTP=20
service<BR><BR></FONT></DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D238320621-03092002>Thanks Paul, it worked! I had to correct =
the timezone=20
offset... It seems that Juniper itself modified the initial right time =
as soon=20
as I configured the timezone, and I didn't notice it before. Now the =
time is=20
ok (1 hour less), and </SPAN></FONT><FONT face=3DArial =
color=3D#0000ff=20
size=3D2><SPAN class=3D238320621-03092002>the Juniper is, at long =
last, in the=20
syncing process!</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D238320621-03092002></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN =
class=3D238320621-03092002>By=20
the way, the daylight saving time setting, is configurable=20
somewhere...?</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D238320621-03092002></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D238320621-03092002>Thanks,</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D238320621-03092002></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D238320621-03092002>Javier</SPAN></FONT></DIV>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
<DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma><FONT=20
size=3D2>-----Original Message-----<BR><B>From:</B> Paul Goyette=20
[mailto:pgoyette@juniper.net]<BR><B>Sent:</B> martes, 03 de =
septiembre de=20
2002 20:15<BR><B>To:</B> Alvira, Javier [CAST:2541:EXCH];=20
juniper-nsp@puck.nether.net<BR><B>Cc:</B> Josef Buchsteiner;=20
lediaz@eurocomercial.es<BR><B>Subject:</B> RE: [j-nsp] NTP=20
service<BR><BR></FONT></DIV></FONT>
<DIV><SPAN class=3D535401319-03092002><FONT face=3D"Courier New" =
size=3D2>Your=20
offset is -355644 millisecs, or 355.6 seconds. =20
since</FONT></SPAN></DIV>
<DIV><SPAN class=3D535401319-03092002><FONT face=3D"Courier New" =
size=3D2>the=20
field is limited to 7 chars including the - sign, =
I</FONT></SPAN></DIV>
<DIV><SPAN class=3D535401319-03092002><FONT face=3D"Courier New" =
size=3D2>much=20
rather suspect that the offset is really 3556 =
seconds,</FONT></SPAN></DIV>
<DIV><SPAN class=3D535401319-03092002><FONT face=3D"Courier New" =
size=3D2>or just=20
under 1 hour.</FONT></SPAN></DIV>
<DIV><SPAN class=3D535401319-03092002><FONT face=3D"Courier New"=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D535401319-03092002><FONT face=3D"Courier New" =
size=3D2>Make=20
sure your manual setting of the time accomodates =
any</FONT></SPAN></DIV>
<DIV><SPAN class=3D535401319-03092002><FONT face=3D"Courier New" =
size=3D2>time=20
zone and/or summertime/dalight saving time =
adjustment.</FONT></SPAN></DIV>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
<DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B>=20
juniper-nsp-admin@puck.nether.net=20
[mailto:juniper-nsp-admin@puck.nether.net]<B>On Behalf Of =
</B>Javier=20
Alvira<BR><B>Sent:</B> Tuesday, September 03, 2002 11:55 =
AM<BR><B>To:</B>=20
juniper-nsp@puck.nether.net<BR><B>Cc:</B> Josef Buchsteiner;=20
lediaz@eurocomercial.es<BR><B>Subject:</B> RE: [j-nsp] NTP=20
service<BR><BR></FONT></DIV>
<P><FONT size=3D2>Thanks to all of you for your answers.</FONT> =
</P>
<P><FONT size=3D2>The truth is that I already manually set the =
time in order=20
to be <128 secs close to the NTP reference server =
(10.128.0.20), which=20
actually is just a NTP server. Other devices querying it are =
properly in=20
sync...</FONT></P>
<P><FONT size=3D2>The "show ntp association" shows this:</FONT> =
</P>
<P><FONT size=3D2> =20
remote =
refid st t when poll =
reach =20
delay offset jitter</FONT> <BR><FONT=20
=
size=3D2>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D</FONT>=20
<BR><FONT size=3D2> 10.128.0.20 =20
=
.GPS. =
1=20
u 40 64 177 =
6.716 =20
-355644 4000.00</FONT> </P><BR>
<P><FONT size=3D2>Thanks in advance for your comments,</FONT> </P>
<P><FONT size=3D2>Javier</FONT> </P><BR>
<P><FONT size=3D2>-----Original Message-----</FONT> <BR><FONT =
size=3D2>From:=20
Josef Buchsteiner [<A=20
=
href=3D"mailto:josefb@juniper.net">mailto:josefb@juniper.net</A>]</FONT> =
<BR><FONT size=3D2>Sent: martes, 03 de septiembre de 2002 =
17:22</FONT>=20
<BR><FONT size=3D2>To: lediaz@eurocomercial.es; Alvira, Javier=20
[CAST:2541:EXCH];</FONT> <BR><FONT=20
size=3D2>juniper-nsp@puck.nether.net</FONT> <BR><FONT =
size=3D2>Subject: RE:=20
[j-nsp] NTP service</FONT> </P><BR>
<P><FONT size=3D2>At 05:38 PM 9/3/2002, Luis Eduardo D=EDaz Zazo =
wrote:</FONT>=20
<BR><FONT size=3D2>>Hello:</FONT> <BR><FONT =
size=3D2>></FONT> <BR><FONT=20
size=3D2>>I think the problem does exist. Although Asim and =
Yi-Kuo=20
suggest the reason</FONT> <BR><FONT size=3D2>>is that 128 =
seconds=20
difference, if I understood Javier, he already took that</FONT> =
<BR><FONT=20
size=3D2>>in mind and made himself sure that the difference =
didn't=20
exist.</FONT> <BR><FONT size=3D2>></FONT> <BR><FONT =
size=3D2>>I tried it=20
in my company's bench and found the same problem as Javier =
did.</FONT>=20
<BR><FONT size=3D2>></FONT> <BR><FONT size=3D2>>I think the =
problem is=20
as follows: while trying to synchronize a juniper to</FONT> =
<BR><FONT=20
size=3D2>>another juniper, the server always answers with an =
NTP response=20
packet with</FONT> <BR><FONT size=3D2>>its reference clock =
field set to=20
zero, according to the packet analysis I</FONT> <BR><FONT =
size=3D2>>did.=20
So the client doesn't accept it as a good clock. But I tried =
to</FONT>=20
<BR><FONT size=3D2>>synchronize a juniper to another vendor's =
router that=20
did answer with an NTP</FONT> <BR><FONT size=3D2>>response =
packet with a=20
non-zero reference clock and it did synchronize.</FONT> <BR><FONT=20
size=3D2>></FONT> <BR><FONT size=3D2>>I presume it's a =
software bug in=20
the server.</FONT> </P>
<P><FONT size=3D2>Luis,</FONT> </P>
<P><FONT size=3D2>Juniper can not act as a reference Server on =
it's=20
own.</FONT> <BR><FONT size=3D2>So you need to have a proper =
reference server=20
to be</FONT> <BR><FONT size=3D2>able to synchronize. This is how =
it is=20
working since</FONT> <BR><FONT size=3D2>day one and not a software =
bug.</FONT> </P>
<P><FONT size=3D2>I don't know if this was the case in the initial =
email.</FONT> </P>
<P><FONT size=3D2>regards</FONT> <BR><FONT size=3D2>Josef</FONT> =
</P>
<P><FONT size=3D2>> I'm using 5.1R2.4 worldwide.</FONT> =
<BR><FONT=20
size=3D2>></FONT> <BR><FONT size=3D2>>Unfortunately enough, =
one can't=20
trace this with juniper's trace flags, since</FONT> <BR><FONT=20
size=3D2>>there isn't any for NTP.</FONT> <BR><FONT =
size=3D2>></FONT>=20
<BR><FONT size=3D2>>Regards,</FONT> <BR><FONT =
size=3D2>></FONT>=20
<BR><FONT=20
=
size=3D2>>-----------------------------------------------------------<=
/FONT>=20
<BR><FONT size=3D2>>Luis Eduardo D=EDaz=20
Zazo Tel: +34 914 359 =
687</FONT>=20
<BR><FONT size=3D2>>Eurocomercial I&C=20
S.A. Fax: +34 914 313 =
240</FONT>=20
<BR><FONT size=3D2>>Valent=EDn Beato=20
=
5 =
=20
<A=20
=
href=3D"mailto:lediaz@eurocomercial.es">mailto:lediaz@eurocomercial.es</A=
></FONT>=20
<BR><FONT size=3D2>>E-28037 Madrid</FONT> <BR><FONT =
size=3D2>>Espa=F1a -=20
=
Spain &n=
bsp; =20
<A target=3D_blank=20
=
href=3D"http://www.eurocomercial.es">http://www.eurocomercial.es</A></FON=
T>=20
<BR><FONT=20
=
size=3D2>>-----------------------------------------------------------<=
/FONT>=20
<BR><FONT size=3D2>></FONT> <BR><FONT size=3D2>></FONT> =
<BR><FONT=20
size=3D2>>-----Mensaje original-----</FONT> <BR><FONT =
size=3D2>>De:=20
juniper-nsp-admin@puck.nether.net</FONT> <BR><FONT =
size=3D2>>[<A=20
=
href=3D"mailto:juniper-nsp-admin@puck.nether.net">mailto:juniper-nsp-admi=
n@puck.nether.net</A>]En=20
nombre de Javier Alvira</FONT> <BR><FONT size=3D2>>Enviado el: =
lunes 2 de=20
septiembre de 2002 17:52</FONT> <BR><FONT size=3D2>>Para:=20
juniper-nsp@puck.nether.net</FONT> <BR><FONT size=3D2>>Asunto: =
[j-nsp]=20
NTP service</FONT> <BR><FONT size=3D2>></FONT> <BR><FONT=20
size=3D2>></FONT> <BR><FONT size=3D2>>Hi all</FONT> =
<BR><FONT=20
size=3D2>>I would like to know whether there is something =
special when=20
configuring a</FONT> <BR><FONT size=3D2>>NTP server in a =
Juniper (M-10,=20
5.0R1.4). This is what I configured:</FONT> <BR><FONT =
size=3D2>></FONT>=20
<BR><FONT size=3D2>></FONT> <BR><FONT size=3D2>>time-zone=20
Europe/Lisbon;</FONT> <BR><FONT size=3D2>>ntp</FONT> <BR><FONT=20
size=3D2>></FONT> <BR><FONT =
size=3D2>> =20
boot-server 10.128.0.20;</FONT> <BR><FONT=20
size=3D2>> server 10.128.0.20;</FONT> =
<BR><FONT=20
size=3D2>>}</FONT> <BR><FONT=20
size=3D2>>-------------------------------------</FONT> =
<BR><FONT=20
size=3D2>></FONT> <BR><FONT size=3D2>></FONT> <BR><FONT =
size=3D2>>The=20
"monitor traffic interface fe-0/0/0" shows this (10.128.0.20 is =
the=20
NTP</FONT> <BR><FONT size=3D2>>server, inside customer's =
network):</FONT>=20
<BR><FONT size=3D2>>15:25:48.737589 Out xx.yy.zzz.44.ntp >=20
10.128.0.20.ntp: v3 client strat 0</FONT> <BR><FONT =
size=3D2>>poll=20
6 prec -20 [tos 0x10]</FONT> <BR><FONT =
size=3D2>>15:25:48.745207 In=20
No-L2-hdr 10.128.0.20.ntp > xx.yy.zzz.44.ntp: v3 =
server</FONT>=20
<BR><FONT size=3D2>>strat 1 poll 6 prec -19</FONT> <BR><FONT=20
size=3D2>>-----------------------------------</FONT> <BR><FONT=20
size=3D2>></FONT> <BR><FONT size=3D2>></FONT> <BR><FONT =
size=3D2>>But=20
this is the output for "show ntp status":</FONT> <BR><FONT=20
size=3D2>></FONT> <BR><FONT size=3D2>></FONT> <BR><FONT=20
size=3D2>>status=3Dc011 sync_alarm, sync_unspec, 1 event,=20
event_restart,</FONT> <BR><FONT size=3D2>>processor=3D"i386",=20
system=3D"JUNOS5.0R1.4", leap=3D11, stratum=3D16,</FONT> <BR><FONT =
size=3D2>>precision=3D-20, rootdelay=3D0.000, =
rootdispersion=3D6.105,=20
peer=3D0,</FONT> <BR><FONT size=3D2>>refid=3D0.0.0.0,=20
reftime=3D00000000.00000000 Thu, Feb 7 2036 =20
6:28:16.000,</FONT> <BR><FONT size=3D2>>poll=3D6,=20
clock=3Dc119f9e3.d22c343b Fri, Aug 30 2002 15:04:19.820,=20
state=3D1,</FONT> <BR><FONT size=3D2>>phase=3D0.000, =
frequency=3D0.000,=20
jitter=3D0.000, stability=3D0.000</FONT> <BR><FONT=20
=
size=3D2>>-----------------------------------------------------------<=
/FONT>=20
<BR><FONT size=3D2>></FONT> <BR><FONT size=3D2>></FONT> =
<BR><FONT=20
size=3D2>>So it seems it's not working... In fact, the initial =
difference=20
of 16 secs</FONT> <BR><FONT size=3D2>>(<128) has widened to =
36 secs in=20
4 days...</FONT> <BR><FONT size=3D2>>Any input will be =
welcome!</FONT>=20
<BR><FONT size=3D2>>Thanks,</FONT> <BR><FONT =
size=3D2>>Javier</FONT>=20
<BR><FONT size=3D2>></FONT> <BR><FONT=20
=
size=3D2>>_______________________________________________</FONT>=20
<BR><FONT size=3D2>>juniper-nsp mailing list=20
juniper-nsp@puck.nether.net</FONT> <BR><FONT size=3D2>><A =
target=3D_blank=20
=
href=3D"http://puck.nether.net/mailman/listinfo/juniper-nsp">http://puck.=
nether.net/mailman/listinfo/juniper-nsp</A></FONT>=20
</P>
<P><FONT =
size=3D2>_______________________________________________</FONT>=20
<BR><FONT size=3D2>juniper-nsp mailing list=20
juniper-nsp@puck.nether.net</FONT> <BR><FONT size=3D2><A =
target=3D_blank=20
=
href=3D"http://puck.nether.net/mailman/listinfo/juniper-nsp">http://puck.=
nether.net/mailman/listinfo/juniper-nsp</A></FONT>=20
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