Wired Networking

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

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

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

Resolved as of 2011-03-16 06:00:00

IST will reroute a fiber jumper in Sutardja Dai Hall from 6:30am to 7:00am on March 8, 2011.

During this work users on the following subnets in Sutardja Dai Hall will be without network connectivity.

eva_zone_cobalt_10.254.244.0/24 Evans-Zone-PPCS-Net_128.32.211.0/27 Evans-Zone-PPCS-Net_10.129.128.0/25 AirBears

Please direct any questions you may have regarding this announcement to IST. http://ist.berkeley.edu/support/service-desk/

Thanks.

Resolved as of 2011-03-08 07:00:00

The fiber optic link that provides network connectivity to the BID in Hearst Mining Building center went down at 4am due to a line card failure on the Soda Hall router.

Resolved as of 2011-02-16 10:00:00

While trying to debug ongoing problems with AirBears, I inadvertently disrupted connectivity to the 2nd-4th floors in Sutardja Dai.

Resolved as of 2010-12-03 11:35:00

During this scheduled outage, firmware will be upgraded on each of 3 switches serving the main building in Sutardja Dai Hall. Each switch will be offline for approximately 5 minutes as it is rebooted. The updated code has better features for detecting and mitigating remote loops introduced by users. This will enable us to prevent future disruptions like the one experienced last Wednesday.

AirBears service throughout EECS will be disrupted during one of the reboots.

Resolved as of 2010-11-30 07:12:00

Network service was disrupted in Sutardja Dai on the 2nd-4th floors due to errant behavior by individuals and/or computers in one of the 4th floor research labs. The problem has been mitigated. Further safeguards will be implemented next week. Happy Thanksgiving.

Resolved as of 2010-11-24 15:00:00

An unkillable sshd process on the 6th floor Soda switch is causing 99% CPU utilization and preventing network managemen. The switch will be rebooted at 5:30pm. Expected disruption of both wired and wireless networking is 1-3 minutes.

Resolved as of 2010-09-16 17:45:00