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IRIS

Instructional & Research Information Systems

Derek Calderon

Access Switch Upgrades, Sat-Sun 8/20-21

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At the suggestion of our vendor, we will be upgrading various access switches to the latest supported software version. This will affect wired and wireless clients in Soda, Cory, and Sutardja Dai Halls, and wireless users in Blum Hall.

The first set of these upgrades will take place Saturday night at 10PM and will occur in waves. We are upgrading sixteen switches in four waves and expect to be done by 11:30.

The second will take place on Sunday night at 10PM, will affect a smaller group of switches, and should be done by 10:30.

Brief network interruptions (on the order of five minutes) are expected for users in these locations while switches reboot. Most locations will experience a single interruption, but some will require two. Where possible, we will stagger reboots in an attempt to maintain Wi-Fi coverage.
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Border Firewall Upgrade, Sat. 7/30 3-5 PM

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We will be performing a software upgrade of our border firewalls at 3PM on this Saturday, July 30th. The maintenance window is scheduled for 3-5 PM, but we expect it will take less time. This is a direly needed upgrade, as the code in production is nearing its tenth birthday.

Per the vendor, no service interruptions are expected, but short outages of our Internet connection are possible. All traffic internal to the EECS network will be unaffected. The Millennium research network resides outside of the firewall, which means that traffic between Millennium and the Internet will not be affected, but traffic between Millennium and the EECS network may be.

We understand this time may be inconvenient for some members of the community, but it was chosen due to staff and project management constraints. If you have a critical issue with this timing, please contact us at help@eecs.berkeley.edu and we can attempt to accommodate you.

This maintenance window is for the first of two needed firewall upgrades. If the first goes well and we are confident in the system’s stability, we will perform both upgrades on Saturday afternoon. If we are unable to do so, there will be a second upgrade window occurring in early August.

Please contact help@eecs.berkeley.edu with any questions or concerns.
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Partial Wired Network Outage, Cory 3rd Floor

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There is currently a partial wired network outage on the third floor of Cory Hall due to a possible hardware failure. Approximately half of the wired ports are offline. Wireless networks are unaffected.

We are working to have service restored as soon as possible. An update will be posted when service is restored or at 10AM, whichever comes sooner.
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Internet Connectivity Issue 7/21/16

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EECS was without Internet connectivity from 8:06 to 9:13 AM this morning due to a firewall issue. The then-primary firewall appears to have hung in a manner that prevented the backup from taking over until network staff arrived onsite and manually intervened.

During the outage, users and machines on the EECS network were unable to access the Internet, and Internet users were unable to access EECS resources or the EECS Web site.

We are working to determine the cause of the issue as well as ways to mitigate similar cases in the future. We are also in the process of constructing an out-of-band management infrastructure to reduce time to repair in outage situations. No further interruptions are expected at this time.

If you continue to experience network issues, please email help@eecs.berkeley.edu or visit our helpdesk at 395 Cory Hall.

Resolved as of 2016-07-21 09:13:00

End of Service for EECS-Guest, EECS-Robonet, and legacy AirBears

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Due to low usage in recent years, combined with a desire to improve overall wireless network performance by removing unused networks, we will be retiring the EECS-Guest and EECS-Robonet wireless networks on July 29. The AirBears network was retired on July 1.

We have already retired EECS-Guest in buildings where it was not being used, and service will be ended in all locations on the 29th. Please use the CalVisitor wireless network for guests without EECS or AirBears accounts. If you are having trouble using CalVisitor, or have guests which require applications that don’t work on CalVisitor, please contact us.

If you are a member of an academic group in Cory Hall that relies on EECS-Robonet but has managed to slip under our radar, please contact us for alternate solutions.

Finally, on the first of July, we followed campus IT’s lead in ceasing to broadcast the legacy AirBears wireless network, which was formally retired in August 2015. All AirBears users should now be using AirBears2.

If you have questions, comments, or concerns about any of the above service retirements, please contact us at help@eecs.berkeley.edu.

Wireless Network Maintenance, Fri. 6/17/16 10PM

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We will be performing a major software upgrade of the wireless controllers at 10PM on Friday, June 17th. This upgrade includes a number of needed security and feature updates.

This will affect wireless networks in the following buildings:
Soda Hall, Cory Hall, Sutardja Dai Hall, Blum Hall, Jacobs Hall, Calvin Laboratory

During the upgrade all wireless networks will be unavailable. We have not upgraded this platform before so we are uncertain how long the outage will last, but we anticipate a minimum of 10 minutes and (barring catastrophes) a maximum of around a half hour.

Please contact help@eecs.berkeley.edu with any questions or concerns about this maintenance outage.
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Cory Hall Server Net Maintenance, 6/2/16 9PM

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We will be performing maintenance on the Cory Hall restricted and server networks tonight at 9PM. Machines on the 128.32.244.0/25 and 169.229.60.128/25 networks (primarily, machines located in 165 Cory) will experience a brief loss of connectivity which we expect to last for less than 10 minutes.

The purpose of this maintenance is to migrate the default gateways for those subnets to a different router to address a possible traffic hairpinning issue. No reconfiguration will be necessary by sysadmins and there should be no visible lasting effect (other than reduced packet loss and/or latency on these networks).

Please contact help@eecs.berkeley.edu if you have any questions or concerns about this maintenance outage.
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Jacobs Hall Wi-Fi Issues and Maintenance 3/14/16 10PM

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The wireless networks in Jacobs Hall are currently malfunctioning due to a defect in the new code which was applied on Friday night. This defect has disabled the wireless network by preventing the APs from powering on fully. Staff are currently implementing a hardware based workaround which will bring the APs online for the afternoon.

We have identified a newer version that closes this particular defect, and confirmed with campus IST that it does work as expected. This upgrade will be applied tonight at 10PM and will involve a brief (~2 minute) downtime for the wired and wireless networks in Jacobs Hall.
[Read more…] about Jacobs Hall Wi-Fi Issues and Maintenance 3/14/16 10PM