Leap Second and manually set time // CUCM

[nikger1980]

Hello guys,

just a question for the upcoming leap second (CSCut25356).

Why the systems that have manually set the time will be affected ?

Is there the need to add a fake NTP there also ?

[Terry Cheema]

Hi Mate,

Please ref to below:

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http://www.cisco.com/web/about/doing_business/leap-second.html

To ensure the correct alignment of astronomical and atomic time, the International Earth Rotation & Reference Systems Service has called for an extra second to be added to Coordinated Universal Time (UTC) at 23:59:59 on 30 June 2015.

This will be the 26th leap second adjustment since 1972, and represents an important consideration for providers of computing, networking, and software solutions.

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The CUCM version 8.0 and earlier are not able to handle that addition of extra second correctly. So we need the work around.

-Terry

[Terry Cheema]

Refer to this latest version for more info: http://www.cisco.com/c/en/us/support/docs/unified-communications/unified-communications-manager-callmanager/119036-technote-vos-00.pdf

-Terry

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[nikger1980]

Guys, thanks for the answers.

But i 've read all these.

My question is other than that.

I have a customer that runs without NTP, just manually set the clock.

Is he affected or not ? Simple as that :)

[maldini.vivek]

Hi 

My understanding is that systerms  run on local time are not directly impacted. Just that they will be a second ahead of global time after inserting a leap second.

Correct me if I am wrong.