The September 25 network outage started just before 1:00 p.m. in the Biomedical and Physical Sciences (BPS) building where traffic containing millions of MAC addresses originated.
This traffic at BPS was processed by the Tier 1 network switches using a significant amount of memory. This caused a collapse-restore cycle that continued until after the Tier 1 switches were rebooted.
Logs were sent to MSU’s network vendor to help diagnose the problem.
The MSU network backbone was designed to automatically direct traffic around a full failure or break. The outage on September 25 was intermittent so the redundancy built into the network couldn’t activate. This outage was a random event, possibly a configuration issue of a computer, and can’t be fully prevented.
For more questions, contact the IT Services Support Desk at (517) 432-6200.