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Instructional & Research Information Systems

Wireless Networking

Wireless network service

Router Maintenance

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As a followup to the network disruption Friday afternoon, I’ll be retesting the primary Cory Hall 10Gb module, and will reconnect the secondary links which were disabled Friday.

I anticipate no service disruption, but because the line card is suspect, and there is potential for problems, this work is scheduled for very early in the morning.

Unfortunately some of the problems we initially diagnosed as part of the routing troubles turned out to be server misconfiguration.
[Read more…] about Router Maintenance

Wireless network outage

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One of EECS switches requires to reboot On Jan 30 (Friday) at 6:00AM. This will affect EECS wireless services from 5-7 floors at Soda Hall. This rebooting should be less than 5 mins. Please keep your plan accordingly.

Resolved as of 2009-02-04 12:51:00

Wireless outage near BID center in the Hearst Memorial Mining Building.

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EECS Networks reports that the Wireless service near the BID center (3rd floor of the Hearst Memorial Mining Building) is out.

The Network Crew says the AP (the device that transmits and receives data for this location) has failed and will be replaced tomorrow morning likely before 9 a.m. (Wednesday, January 21st, 2009).

An update will be forth coming.
[Read more…] about Wireless outage near BID center in the Hearst Memorial Mining Building.

Brief Network Disruption.

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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

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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

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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