nanog mailing list archives

RE: Someone didn't get the leap second memo...


From: "Chuck Church" <chuckchurch () gmail com>
Date: Sun, 1 Jan 2017 08:05:25 -0500

That bug note indicates all 3.13.* are vulnerable to this, but our 3.13.3 lab router seemed ok, no reload.  Logged:

Dec 31 23:59:59: %IOSXE-5-PLATFORM: R0/0: kernel: Clock: inserting leap second 23:59:60 UTC

But the release notes seem to indicate that bugs:
CSCut82336      ASR1002-X: Handle leap second in ToD IN
CSCut65374     PTP Leap Second: ASR1002-X incorporate leap second addition 6/30/15

are open caveats in 3.13.3, and resolved in 3.13.4.   I guess I'll find out which of our 300+ ASR 1000s misbehaved on 
Tuesday.  They're pretty much all on 3.13.5.  Hopefully none had an issue.  There are a lot of PSIRTs with ASRs, that's 
the main reason we're on later 3.13 versions.

Chuck

-----Original Message-----
From: NANOG [mailto:nanog-bounces () nanog org] On Behalf Of Richard Hicks
Sent: Saturday, December 31, 2016 9:17 PM
To: Hugo Slabbert <hugo () slabnet com>
Cc: nanog () nanog org
Subject: Re: Someone didn't get the leap second memo...

We had some ASR1001s routers reboot.

Looks like we hit this bug:
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvb01730


On Sat, Dec 31, 2016 at 5:47 PM, Hugo Slabbert <hugo () slabnet com> wrote:

Had a set of Cisco ASR1004s running 15.4(3)S1 (on IOS-XE 03.13.01.S) 
all restart at around midnight UTC, and all with `Last reload reason:
Watchdog`, with those boxes being at separate DCs in different regions.
I'm assuming when I call TAC I'll get a "whoops; sorry".

--
Hugo Slabbert       | email, xmpp/jabber: hugo () slabnet com
pgp key: B178313E   | also on Signal


On Sun 2017-Jan-01 01:02:24 +0000, Matthew Huff <mhuff () ox com> wrote:

[root@hayden ~]# ntpq -p
    remote           refid      st t when poll reach   delay   offset
jitter
============================================================
==================
LOCAL(0)        .LOCL.          10 l  20d   64    0    0.000    0.000
 0.000
-clock.xmission. 132.163.4.103 2 u  169  256  377   66.078   -1.302
 0.164
xclock.sjc.he.ne 10.200.208.2     2 u   13  256  315   65.689  999.633
 2.015
+tock.usshc.com  .GPS.            1 u   87 256 377 26.930   -0.550
 0.121
*ntp.your.org    .CDMA.           1 u   43 256 217 23.339    0.544
 0.069

Our batch system went belly up, but other than that, no other 
apparent leap second issues.

----
Matthew Huff             | 1 Manhattanville Rd
Director of Operations   | Purchase, NY 10577
OTA Management LLC       | Phone: 914-460-4039
aim: matthewbhuff        | Fax:   914-694-5669





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