Leap Second issue on CCR units

Announcements
1

Unfortunately, there was a bug in our NTP package that caused a crash on CCR units due to the introduction of the Leap Second on June 30, 2015. This bug did not cause any other problems. We have fixed the issue in RouterOS v6.30rc26. No other devices were affected, only CCR units.

We are sorry for the inconvenience, please upgrade the devices when the new v6.30 version comes out, or upgrade to the RC now, if you prefer to get the fix sooner. The fix will also prevent any problems with further leap seconds in the upcoming years.

In addition, we also improved the Watchdog to do it’s job better and make sure the devices are rebooted in this type of crash.

Download v6.30rc26 here: http://www.mikrotik.com/download/share/routeros-tile-6.30rc26.npk

2

Hi Normis,

I had CCR unit running NTP updates on 6.27 that did not crash?

I purposefully disabled SNTP on my primary routers but left it on my secondary’s to see if they would be affected but they were not.

CCR1036-8G-2S+ running 6.27

3

It is possible that your NTP server did not send a “Leap Flag” but simply sent new corrected time, it depends on the server.

4

My ccr did crashed on 30th June midnight
after rebooting it worked fine

5

Thanks for the patch guys…will test it out soon.

6

HI,

I have same issue here, my CCR was Crash and must power restart to make it UP. But, I thing my problem is diff because there is no ntp client or server enable. This happen periodically but random. there is no CPU load issue.
anyone have my experiece to?

Thanks

7

Just a bump… leap second on the 31st of December 2016. Make sure your CCR’s are upgraded before then.

8

huh… Normis, please confirm that the bug is in NTP package, and SNTP client is not affected

or should we better disable SNTP client for a day or two on pre-6.30 versions?

9

the old bug was in the NTP package (affected only multicore systems). but it was fixed after 6.30

10

So our CCR with ntp package version 6.37.3 will not crash tomorrow night? Promise? :slight_smile:

11

We did test it again, so I hope it will be ok :smiley:

12

Mine is on 6.30.1 - holding thumbs :slight_smile:

13

Our CCR made it OK… Happy new year!