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ITS Alert - Resolved: VMHosting Network outage

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Resolved: VMHosting Network outage

Last updated on October 23, 2013 at 11:01AM

Update on October 23, 2013 at 11:01AM

We confirmed that the outage on 10/17 was caused by a misbehaving load balancer. We rebooted the device prior to the outage and it did not come up correctly. It then started flapping an interface, causing spanning tree to block network traffic. Once the device was powered off, the network returned to a normal state. We disabled spanning tree on the switch ports for the load balancer and we are working working with the vendor to prevent this from happening again.

Update on October 17, 2013 at 6:38PM

The network for VMHosting and vLearning has been stable since 5:08pm. We removed a device from the network that was misbehaving and are investigating how it caused today\'s outage. We will update this alert when we have more information.

Original Alert

Today at 4:22pm the VMHosting and vLearning services started experiencing intermittent network outages. We are currently investigating the issue and will update this alert when we have more information.

For more information, please contact Support (vmhost.psu.edu).


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Impact Information

  • Incident Type:
    Unscheduled Maintenance or Upgrade
  • Services affected:
    VMHosting and vLearning
  • Locations affected:
    All locations
  • Began on:
    October 17, 2013 at 4:22PM
  • Issue Resolved:
    October 23, 2013 at 10:29AM