We are continuing to investigate hardware problems with the EECS edge router. We will provide an update when we have more information.
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Wireless Networking
Wireless network service
Wireless networking in EECS at Hearst Mining/Sibley
There are some APs down at Hearst Mining Building and 1 AP in Sibley building. We are investigating.
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Network outage CITRIS May 31 between 4:30pm to 6:00pm
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.
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
Wirelss networking in EECS May 21 at 3:00am
Cisco AP controllers will be rebooted on May 21 at 3:00am. Please make your plan accordingly. Please let us know if you have any concern.
Resolved as of 2011-05-21 04:20:00
Network outage CITRIS April 24 at 13:30pm
Switches in citris will be rebooted for the new image in order to solve some SSH issues. The maintenance window will be from 13:30-16:30pm on April 24(Sunday). Event should only take less than 1 hour. Additional time is in case of issues.
Resolved as of 2011-04-24 13:51:00
Wireless Connectivity in Cory Hall
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.
Please let us know if you have some concerns or questions.
Resolved as of 2011-04-09 08:00:00
Cory Hall 4th Floor Wireless Coverage
Due to construction on the 4th Floor of Cory Hall, wireless APs are being removed on the South side of the floor. Consequently, there will be limited WiFi access there to all WLANs. Wireless service will continue in the area around the BSAC office and labs in the immediate vicinity to BSAC. New APs will be reinstalled once the area is remodeled and ready for occupancy again.
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Unplanned Power outage at BWRC
There was a loss of power at BWRC around 11:15am this morning. The power for the whole building is down. This will be corrected as soon as possible by PG& E. We regret this inconvenience.
Resolved as of 2011-03-22 13:56:00
EECS RADIUS server update on March 16 at 10:00PM
EECS RADIUS server will apply an update on March 16 at 10:00PM. This update will fix a bug in retrieving user attributes from AD if user name contains ‘0’. You should not be aware of this update, however we schedule from 10:00PM to 10:30PM just in case, please contact with networks@eecs.berkeley.edu for your concerns.
Resolved as of 2011-03-17 22:00:00
EMERGENCY SCHED OUTAGE Sutardja Dai Hall
EMERGENCY SCHED OUTAGE Sutardja Dai Hall 3/16/2011, Wednesday 5:00am – 6:00am
Equipment: sut1ds Location: Sutardja Dai Hall Date: 3/16/2011, Wednesday Start: 5:00am End: 6:00am
Description: During this network outage, core switch sut1ds will be reloaded to address dynamic memory fragmentation, which makes the IOS software unable to allocate memory for necessary processes. The reload should complete in 15 minutes, but an hour is scheduled for any problems.
During this time, the network will not be able to access. It will affect EECS wireless Airbears in EECS including Sutardja, Cory, HMMB, and also soda hall. It will affect wired connections in Sutardja Dai Hall and some area of cory hall in the gen assign classrooms.
169.229.200.120/29 Sutardja Dai, ks2 net 169.229.250.128/27 Cory, Gen Assign Classrooms 169.229.144.0/25 HMMB CITRIS net 136.152.170.0/23 EECS AirBears 136.152.176.0/23 Sutardja Dai AirBears
Equipment: sut1ds Location: Sutardja Dai Hall Date: 3/16/2011, Wednesday Start: 5:00am End: 6:00am
Description: During this network outage, core switch sut1ds will be reloaded to address dynamic memory fragmentation, which makes the IOS software unable to allocate memory for necessary processes. The reload should complete in 15 minutes, but an hour is scheduled for any problems.
During this time, the network will not be able to access. It will affect EECS wireless Airbears in EECS including Sutardja, Cory, HMMB, and also soda hall. It will affect wired connections in Sutardja Dai Hall and some area of cory hall in the gen assign classrooms.
169.229.200.120/29 Sutardja Dai, ks2 net 169.229.250.128/27 Cory, Gen Assign Classrooms 169.229.144.0/25 HMMB CITRIS net 136.152.170.0/23 EECS AirBears 136.152.176.0/23 Sutardja Dai AirBears
Resolved as of 2011-03-16 06:00:00