From: Jay Hennigan (jay@west.net)
Date: Thu Jun 26 2003 - 15:10:48 GMT-3
On Thu, 26 Jun 2003, ccie2be wrote:
> I have 2 2500's connected via ethernet and they can ping each other's loopback
> and ethernet addresses.
>
> This is the NTP config of each:
>
> RTR-1
>
> ntp master 6
> ntp server 192.168.2.2 source lo0
>
>
> RTR-2
>
> ntp master 7
> ntp server 192.168.1.1 source lo0
>
>
> Both routers have there system clocks set to different dates and times.
>
> When I do a "show ntp asso det" on rtr-2, it shows
>
> 192.168.1.1 configured, insane, invalid...
>
> Why is this and what should I do about it?
I haven't tested this in the lab, but a thought...
Each "hop" increases the stratum by one. If r2 is a master at stratum
7 and r1 has a widely varying time and reports itself as stratum 6, then
r2 has two sources that are effectively stratum 7. As it is itself a
master, it will reject the data from the peer at the same stratum as
"insane" if the time is different.
What is the behavior if the strata differ by 2 or more? Change r1 to
master at stratum 5 for example.
-- Jay Hennigan - CCIE #7880 - Network Administration - jay@west.net WestNet: Connecting you to the planet. 805 884-6323 WB6RDV NetLojix Communications, Inc. - http://www.netlojix.com/
This archive was generated by hypermail 2.1.4 : Fri Jul 04 2003 - 11:11:10 GMT-3