IRIS

Instructional & Research Information Systems

EECS

Derek Calderon

Scheduled Network Maintenance: Labor Day Weekend 8/31 – 9/2, 3-4AM

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We will be performing firmware upgrades on the EECS core routers at 3AM on the mornings of Saturday 8/31, Sunday 9/1, and Monday 9/2 (Labor Day weekend). Each outage is expected to last under 20 minutes; however a full hour has been scheduled in case of unanticipated issues. Specific times and expected impact for each maintenance window is below.

These upgrades were completed successfully as of Monday 9/2 at 4AM.

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Wireless Network Maintenance, 9/18/18 10PM

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We will be performing an upgrade of our wireless controllers tonight at 10PM. Wireless networks will be unavailable for 15-30 minutes during the upgrade.

The software update intends to resolve some existing bugs which have been triggering unexpected controller reboots, occasionally causing network outages.

This maintenance will not affect BWRC, as that controller has already been updated. All other EECS Wi-Fi locations will be affected. (Soda, Cory, SDH, Jacobs, Blum, Calvin, HMMB BiD Center)
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Brief Wi-Fi Outage, 9/14/18

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There was a brief wireless network outage this morning due to a simultaneous crash of the primary and backup wireless controllers. The controllers self-recovered and we are now investigating the cause of the crash.

Wireless networks at BWRC were not affected.

Resolved as of 2018-09-14 10:20:00

BWRC Uplink Issues, 8/23/18

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Following this morning’s IST network maintenance we are experiencing issues passing traffic in and out of BWRC. We may have identified the root cause and are working with the campus NOC to resolve.

The impact specifically seems to be traffic between BWRC and EECS. Local traffic within BWRC is not affected. General traffic to/from the Internet does not appear affected. We are unsure about traffic between BWRC and the rest of campus outside EECS.

We will be performing an experimental configuration change tomorrow morning on the related EECS routers to try and alleviate the issue until the true cause can be addressed with IST. An update will be posted here before or around noon.
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HMMB BiD Center Wired Network Outage 7/13/18 – Ongoing

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The EECS wired network in the HMMB BiD center (169.229.63.0/25) is currently down due to a link issue. According to our router, the link has been down since Friday 7/13 at 22:47.

This part of the network is a little unusual, in that it is served by an EECS router but an IST switch and IST cabling for the last-mile. We have confirmed there seems to be no issue on our end and are working with IST networks toward a resolution.

Wireless networks in HMMB are not affected, including EECS-Secure and EECS-PSK.

Update 12:03 PM: We are in contact with IST Network Operations and they are aware of the severity of the issue. Due to heavy workload, they may not be able to address the issue until tomorrow, but they will look at it as soon as possible.
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