Leap second adjustment on 30th of June may cause issues 2

Leap_Second_2015

Next leap second adjustment is scheduled for 30th of June 2015 at 23:59:60 UTC and it may cause issues on NTP synchronized devices and operating systems. Systems based on older Linux kernels are known to be affected by leap second, several vendors have released KB articles regarding leap second impact on their software.

VMware

Certain versions of VMware vCenter Server Appliance 5.0 and 5.1 are known to be impacted by leap second.

http://kb.vmware.com/kb/2115818

Cisco Nexus 1000v

VSM module of Cisco Nexus 1000v is known to be impacted by leap second.

https://tools.cisco.com/quickview/bug/CSCus80369

Cisco Nexus 5000/5500

Cisco Nexus 5010, 5020 and 5500 switches running NX-OS 5.0, 5.1 or 5.2 are known to be impacted by leap second. Nexus 5010 and 5020 switches are commonly used as NetApp cluster interconnect switches and these devices are most likely to be running affected NX-OS version!

https://tools.cisco.com/quickview/bug/CSCub38654

EMC Avamar

Gen4 and Gen4S models of EMC Avamar are impacted by leap second. EMC has not released publicly available bulleting on the issue but fix will be provided to Avamar customers by EMC support by 30th of June.

Fix is described in Novell KB https://www.novell.com/support/kb/doc.php?id=7016150

EMC VPLEX

EMC VPLEX is impacted by leap second, fix is available and will be implemented by EMC support prior 30th of June.

https://community.emc.com/message/887102

NetApp DataONTAP

NetApp DataONTAP is not impacted by leap second.

https://kb.netapp.com/support/index?page=content&id=3011978&locale=en_US

Tintri VMstore

Tintri VMstore storage appliances are not impacted by leap second. There is no public bulletin regarding this issue but this has been confirmed with Tintri Support.

F5 Networks

F5 Networks devices are known not to be impacted by leap second.

https://support.f5.com/kb/en-us/solutions/public/16000/300/sol16328.html

Aruba

Aruba products such as WLAN controllers are known to be impacted by leap second.

http://community.arubanetworks.com/aruba/attachments/aruba/unified-wired-wireless-access/49619/1/ARUBA-PFB-20150430_Leap_Second_Field_Bulletin_Rev-3.0511.pdf

Check Point

Certain versions of Check Point operating systems are impacted by leap second.

https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk104560

Palo Alto Networks

Palo Alto Network devices running PANOS support leap second adjustment.

https://live.paloaltonetworks.com/docs/DOC-8897

Juniper Networks

Juniper devices running JUNOS (M, MX, EX, SRX, etc) support leap second adjustment.

http://kb.juniper.net/InfoCenter/index?page=content&id=KB12979

2 thoughts on “Leap second adjustment on 30th of June may cause issues

  1. Reply VMwareCares (@VMwareCares) Jun 18,2015 20:31

    http://vmw.re/1dMyKjx Addition of leap second may result vCNS Manager/App/Edge/Data Security appliances becoming non-responsive (2120837)

    http://vmw.re/1CfqkXM VMware #ESXi and Leap Seconds (2121190)

    http://vmw.re/1IPv8rL Enabling Slew Mode for NTP (2121016)

  2. Reply Kevin Jun 30,2015 00:44

    Cisco UCS Fabric Interconnects
    Specific Firmware versions are affected:
    Known Affected Releases: (3)
    2.2(1b)A
    2.2(2c)A
    2.2(3a)A
    https://tools.cisco.com/bugsearch/bug/CSCus83447

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