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IRIS

Instructional & Research Information Systems

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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Retiring amd.home.* NIS maps

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For many years IDSG has published automount maps in both autofs format as well as amd. This was because some systems used autofs and some used amd. This is no longer the case – autofs is available on all our supported operating systems. Effective September 2018, the amd.home.eecs and amd.home.cs maps are now frozen (no new accounts are being added) and they will eventually be retired from NIS.

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.
[Read more…] about BWRC Uplink Issues, 8/23/18

cronus and rhea downtime Tuesday August 21, 2018 06:45-07:15am

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cronus one of the departmental DNS, NIS and time servers will be down for a needed reboot to activate changes delivered by some RHEL patches from 6:45-7:00am.

rhea the other departmental DNS, NIS and time server will be down for a needed reboot to activate changes delivered by some RHEL patches from 7:00-7:15 am.

Though the toal scheduled downtime is 6:45am to 7:15am, we expect actual downtime to be less.
[Read more…] about cronus and rhea downtime Tuesday August 21, 2018 06:45-07:15am