RE: NTP

From: Kemal YILDIRIM (kemalhy@gmail.com)
Date: Wed Jul 05 2006 - 17:23:50 ART


Hi,
Most of the cisco devices has no hardware clock inside them.
If your device has an internal hardware clock, then you can configure that
device as NTP source with "ntp master" global config command. Now this
device can be used as a NTP server. Actually you can use "ntp master"
command even if you have no hardware clock, but you will loose your adjusted
time when the device is reloaded.

In your case R1 is a NTP client of another NTP server, and by default cisco
devices are not NTP servers, so R1 can only peer with another NTP client.
Regards,
Kemal

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
bindong.shi@gmail.com
Sent: Wednesday, July 05, 2006 10:38 AM
To: ccielab@groupstudy.com
Subject: NTP

hi all:
For a router R1 being requested to learn the time from time server with IP:
10.1.1.1, we can config:
ntp server 10.1.1.1

which command we should use, if we are asked to configure R2 learn the time
from R1, should we use "ntp peer 11.1.1.1" (R1 ip address) or "ntp server
11.1.1.1"?



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