topic RE: Stacking time different on slot 2 in ExtremeSwitching (EXOS/Switch Engine)

Stacking time different on slot 2

Ian_Worms — Thu, 22 Oct 2015 19:12:00 GMT

Hi,

We have three switches in a stack, slot 1, slot 2 and slot 3. The time is the same on slot 1 and slot 3 if a telnet to slot 1 and slot 3 and show switch. But if I telnet to slot 2 and do a show switch the time is different and there is no time zone.

How do I sync the time between all three slots?

Thanks
Ian

RE: Stacking time different on slot 2

davidj_cogliane — Thu, 22 Oct 2015 19:18:00 GMT

I encountered the same problem last night. I configured the time on the master and saved. I checked the time on slot 3 again and it was synced. I am curious as to why the time was off though?

RE: Stacking time different on slot 2

Ian_Worms — Thu, 22 Oct 2015 19:35:00 GMT

Hi,

Did you have any issue with slot failures while you had different times on the slots?

Thanks
Ian

RE: Stacking time different on slot 2

davidj_cogliane — Fri, 23 Oct 2015 01:48:00 GMT

Yes, the switch in question failed twice this past week. I can not say if the time difference was a cause or a symptom though.

Were you able to correct the time the same way I did?

RE: Stacking time different on slot 2

Ian_Worms — Fri, 23 Oct 2015 10:45:00 GMT

Hi David,

I am going to correct the time through a change window this weekend. Just worried to change it now and there is another impact. I must say Extreme switches work great and are bullet proof but when it comes to stacking i am a but worried.

It would be nice if someone from Extreme could provide feedback on the time issue and if this could cause a slot failure.

Regards
Ian

RE: Stacking time different on slot 2

Bharathiraja__S — Fri, 23 Oct 2015 13:16:00 GMT

Hi Ian,

Could you provide the show switch information ?

Thanks,
Suresh.B

RE: Stacking time different on slot 2

Bharathiraja__S — Fri, 23 Oct 2015 13:19:00 GMT

Hi

Hope this article would help you both.

https://gtacknowledge.extremenetworks.com/articles/Solution/Timezone-configuration-is-not-applied-to...

Thanks,
Suresh.B

RE: Stacking time different on slot 2

Ian_Worms — Fri, 23 Oct 2015 13:29:00 GMT

Hi,

Thanks for the link, just wanted to ask again if the time is correct between slots could this cause a slot reboot?

Regards
Ian

RE: Stacking time different on slot 2

Bharathiraja__S — Fri, 23 Oct 2015 13:47:00 GMT

Hi Ian,

Time zone mismatch will not cause slot reboot.

Thanks,
Suresh.B

RE: Stacking time different on slot 2

JHONN_WILLIAM_B — Sat, 12 Mar 2016 01:04:00 GMT

Hi, I have 4 switches Summit X460 in stack mode, master and backup are time synchronized but the other stanby nodes are out of time. I use the version 15.7.1.4 patch1-2. what action do I have to do in order to fix this?

RE: Stacking time different on slot 2

BradP — Sat, 12 Mar 2016 11:24:00 GMT

Hi Jhonn,

The defect has been resolved in the following versons:

EXOS 16.1.1
EXOS 15.7.2
EXOS 15.6.2 Patch 1
EXOS 15.5.4

RE: Stacking time different on slot 2

JHONN_WILLIAM_B — Mon, 14 Mar 2016 23:33:00 GMT

Hi Brad,

What recomendation should I follow, do I have to do an upgrade to 16.1.1 or a downgrade?

RE: Stacking time different on slot 2

BradP — Mon, 14 Mar 2016 23:33:00 GMT

Hi Jhonn,

15.7.2 came out after your 15.7.1 patch 1-2 so that would be the version that I would recommend. As always, with any version of code, it should be tested in a pre-production environment and then rolled out when sufficient testing has been completed in order to help mitigate against any unforeseen circumstances.

Brad