From: Anderson Mota Alves (mota_anderson@hotmail.com)
Date: Thu Feb 09 2006 - 08:39:37 GMT-3
I also suggest you to always set the clock set on the routers before
configure ntp with command "clock set" since the machines will be using
the hardware clock beforing establishing synchronization with server.
And I forgot to mention you that I think you can't configure a 3550 as
master so use a router as an example for that othewise you won't have the
command ntp master available, but I may be wrong on this.
Does anybody know if ntp master is supported on 3550 switches with newer
IOS or it's not supported at all?
Regards,
Andy
--------------------------------------------------------------------
From: sameer azam <sameer.azam@gmail.com>
To: Anderson Mota Alves <mota_anderson@hotmail.com>
Subject: Re: NTP Quesion
Date: Thu, 9 Feb 2006 14:33:44 +0400
hi,Do u mean that when u configure R1 as the MASTER with a stratum of
2 then automatically other ( SW & R4) will set their stratum value to
3. See i understand the stratum concept and that is no more than this
that lower the value better the stratum is. but when when asked to
configure the A SECIFIC Stratum value on R4 & Sw do u need to
configure that or not?and also there is no NTP MASTER command on the
CAT 3550. so in this what should be the correct answer. Regards
On 2/9/06, Anderson Mota Alves <mota_anderson@hotmail.com> wrote:
Hi Sameer,
Since you need to have the clients with a stratum of 3 in order
to accomplish that you need to configure the server with a
stratum of 2, so in this case the clients will be getting the
stratum with a value of 3.
Solution:
SW: loopback 0's SW: 12.12.7.7
ntp server 12.12.1.1
ntp source loopback 0
R4: loopback 0's R4: 12.12.4.4
ntp server 12.12.1.1
ntp source loopback 0
R1: (the server) Loopback 0's R1: 12.12.1.1
ntp master 2
ntp source loopback 0
Note that I haven't configured any stratum value on SW since this
router will
be getting this value from the server (R1)
If you have a way to set this up please do it and then let me
know if everything worked fine.
Regards,
Andy
------------------------------------------------------------
From: Ivan <ivan@iip.net>
Reply-To: Ivan <ivan@iip.net>
To: ccielab@groupstudy.com, sameer azam <sameer.azam@gmail.com>
Subject: Re: NTP Quesion
Date: Thu, 9 Feb 2006 11:56:47 +0300
>lake(config)#ntp master ?
> <1-15> Stratum number
>
>
> > The topology is like follows;
> >
> > SW
> >
> >
> >
R1______---_______R4
> >
> > The link between R1 & Sw is Ethernet connection.
> > The link between R1 & R4 is Frame-Relay Connection.
> >
> > The QUESTION IS;
> >
> > You need to configure the R4 & SW for STRATUM 3
> > Both of R4 & SW should get get their time clock from the
R1.
> >
> > How would you do this?
> >
>
>--
>Ivan
>
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