Header Search Widget
IRIS

Instructional & Research Information Systems

Wireless Networking

Wireless network service

Brief Network Disruption.

by

All connectivity between EECS and the outside world was briefly disrupted. The exact cause of the outage is unknown; log messages are inconclusive. The primary symptom was dropped OSPF routes on the links which traverse the EECS firewall links. While nobody was actively working on the equipment at that time, it’s possible this outage is related to preliminary testing of new 10GB network links to campus. The problem seems to have resolved itself.

Resolved as of 2009-01-05 16:24:00

Two EECS switches Offline Briefly for Maintenance

by

The EECS switches that are serving north east side of Soda 5th floor and of Soda 6th floor will all experience brief outages on Monday, Dec 22, 2008 beginning at 7:00a.m. due to system maintenance.

The wired network will be offline and users will experience a brief (less than 5 minutes) outage while the switch is rebooted to apply new operating system code. Since some wireless networking devices are also fed by those two devices, some of wireless users will experience a brief outage as well.

Resolved as of 2008-12-22 07:30:00

AirBears Downtime

by

To: ucb-net-announce@lists.berkeley.edu
Organization: IST-Infrastructure Services

SCHED OUTAGE Entire AirBears Wireless Network: Thursday, 30 October 2008: 05:30 – 07:00PDT

Equipment: Wireless Access Managers and Control Servers
Location: Entire AirBears Wireless Network
Date: Thursday, 30 October 2008: Start: 05:30 End: 07:00PDT

Description: This Thursday, IST will be upgrading the Operating System on both Wireless Control Servers and on many of the Wireless Access Managers throughout campus.

This outage will affect ALL AirBears locations throughout campus and surrounding areas. During the upgrade process, affected networks will be unavailable, and currently attached clients will be required to reauthenticate.

Please note that the maintenance window for this outage is one and one half (1.5) hours. The affected subnets should be back on-line within forty minutes of the initial outage, but a larger window has been allocated to allow for unforseen challenges.

Resolved as of 2008-11-02 00:22:00

Brief network outage in Cory and BWRC, Oct 28, 6:30am

by

The main Cory router will be down for maintenance on Tuesday October 28, 2008 from 6:30AM to 7AM. This will shutdown all connectivity in Cory Hall and internet access for BWRC. Actual downtime is expected to only be about 10 minutes, maybe less.

Bruce, EECS Networks
[Read more…] about Brief network outage in Cory and BWRC, Oct 28, 6:30am

Wireless Network Slowdowns

by

Some locations for EECS supported wireless services were very slow or disrupted due to a controller issue. The areas affected were HMMB, BWRC, Brewed Awakenings and some of the upper floors of Soda. A controller reboot appears to have solved the issue.

Resolved as of 2008-10-06 13:42:00

AirBears In EECS

by

AirBears wireless to some locations in EECS (particularly BWRC) was disrupted whereby AirBears clients could not get a lease. Other EECS WLANs were not affected. One wireless controller was shut down and all APs are back up on the other controllers. This may have resulted in a brief outage for some wireless clients.

We will do some more testing on the suspect controller tomorrow morning.
[Read more…] about AirBears In EECS

Cory Transformer Upgrade

by

Physical Plant will be shutting off all the power to Cory Hall to switch
transformers on Wednesday night, June 4th from 7pm to 9pm. This will
allow upgrade of our back up transformer located in the basement. The
building will be closed from 6pm until 9pm for this event. Please ensure
your lab equipment and computers are prepared for this event.

Please contact Scott McNally for questions or Mark Davis (642-1468) in
room 253, Cory Hall.

Note that CUSG will be on-site during this time, and will coordinate the shutdown of CUSG-supported servers in Cory Hall, and later will get them back online when the power is restored.

CUSG will attempt to power-off all CUSG-supported Cory Hall workstations (Windows PCs and Linux workstations) starting at 5:30pm. CUSG will power-off all CUSG-supported Cory Hall servers beginning at 5:45pm. Some may be online as late as 6:30pm, as we continue shut-downs remotely. Servers will be brought back online as soon as power is restored.

Soda Hall computer services should continue normally.
[Read more…] about Cory Transformer Upgrade