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Instructional & Research Information Systems

Janet Shu

EECS Network Maintenance on Aug 25 at Soda Hall

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We are continuing to do switch maintenance. The EECS switches(in 4A, 4B, 3B) are located at 4th and north east side of 3rd floor of Soda will experience brief outages on Thursday, Aug 25, 2011 beginning at 6:00a.m. due to network maintenance.

The wired network will be offline and users will experience a brief (couple minutes) outage while the switches are rebooted to apply new firmware. Since wireless networking devices are also fed by that device, wireless network will experience a brief outage as well.

Resolved as of 2011-08-25 06:05:00

EECS Network Maintenance on Aug 19

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One of uplink 10G connection ports to the campus router was malfunctioning and had been move to the temp port. We have received the replacement module from our vendor for the malfunctioning port in the edge router. Installing the new module will not expect a complete outage, this task should be done less than 5 mins.

If you have any concern, please contact networks@eecs

Resolved as of 2011-08-19 17:02:00

EECS Network Maintenance on Aug 19

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We are continuing to do switch maintenance. The EECS switches(in 7A, 6A, 5A) are located at 7th, 6th, 5th floor of Soda will experience brief outages on Friday, Aug 19, 2011 beginning at 6:00a.m. due to network maintenance.

The wired network will be offline and users will experience a brief (couple minutes) outage while the switches are rebooted to apply new firmware. Since wireless networking devices are also fed by that device, wireless network will experience a brief outage as well.

Resolved as of 2011-08-19 06:05:00

EECS Network Maintenance on Aug 18

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We are continuing to do switch maintenance. The EECS router(soda8810) will experience brief outages on Thursday, Aug 18, 2011 beginning at 6:00a.m. due to network maintenance.

The wired network will be offline and users will experience a brief (couple minutes) outage while the switch is rebooted to apply new firmware. Since wireless networking devices are also fed by that device, wireless network will experience a brief outage as well.

Resolved as of 2011-08-18 06:03:00

EECS Network Maintenance on Aug 12

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The EECS switch that is serving south west side of Soda 3rd floor will experience brief outages on Friday, Aug 12, 2011 beginning at 6:00a.m. due to network maintenance.

The wired network will be offline and users will experience a brief (couple minutes) outage while the switch is rebooted to apply new firmware. Since some wireless networking devices are also fed by that device, wireless network at the floor will experience a brief outage as well.

Resolved as of 2011-08-12 06:03:00

Network outage CITRIS May 31 between 4:30pm to 6:00pm

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The citris 8810 switch with Black Diamond chassis incurred an MSM failover on May 29 around 12:51PM.

It appears that the MSM failed over due to a process crash. The process that crashed was snmpmaster process. It appears that the backup MSM was not in synch with the master which would have caused an outage as the hitless failover could not take place if the backup MSM was not in synch.

I plan to take some actions to prevent this happening again around on May 31 around 4:30pm-6:00pm . Also the firmware upgrade will be applied as well. The switch may require to reboot and it should take less than 10 mins during that time you might experience the intermittent issue. The extra time is scheduled for if there is an unexpected occurrence.

Resolved as of 2011-05-31 17:10:00

Wireless Connectivity in Cory Hall

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Due to the configuration change on Cisco AP controller for one research project, it will require to reboot some APs in Cory Hall. You may experience some intermittent wireless issues between 7:30-8:30am on April 9(Sat).

Please let us know if you have some concerns or questions.

Resolved as of 2011-04-09 08:00:00