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Re: Leap second reminder - Check your NTP
- From: Chris Adams
- Date: Sat Dec 31 22:17:30 2005
Once upon a time, Kevin Day <firstname.lastname@example.org> said:
> While I can't say anything broke on our network as a result of the
> leap second, a good percentage of our gear lost NTP sync or had some
> kind of NTP problem around midnight UTC. You may want to check your
> NTP status at some point, in case something drifted quite a way off
> and won't step itself back now because the difference is too great.
I watched my Tru64 5.1B and Linux 2.2-2.6 servers (NTP wasn't running on
my Solaris 9 server accidentally) and Juniper and Cisco gear, and they
all stayed in sync. The Linux systems logged:
Dec 31 17:59:59 kosh kernel: Clock: inserting leap second 23:59:60 UTC
17:59:59 lasted 2 seconds in local time (since the normal time zone data
doesn't pass through leap seconds).
I saw the following from JUNOS:
Dec 31 18:00:00 hsvrouter /kernel: microuptime() went backwards (8144133.847075 -> 8144132.881330)
Tru64 and Cisco didn't log anything.
Chris Adams <email@example.com>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.