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Derek Calderon

165 Cory Network Outage, 10/21/16

October 21, 2016 by Derek Calderon

The wired network in the 165 Cory server room will be offline from 8-10AM while switches are physically relocated.

All department services have redundant copies elsewhere and will not be affected. Private systems within 165 Cory will not have network connectivity.

Please contact help@eecs.berkeley.edu if you have any questions or concerns about this maintenance.
[Read more…] about 165 Cory Network Outage, 10/21/16

Filed Under: Resolved Incidents Services: Wired Networking

Soda 5th Floor Wireless Outage, 10/17-18

October 17, 2016 by Derek Calderon

The wireless network on half of the fifth floor of Soda Hall has been offline since yesterday morning. Trouble reports were received this morning and we are currently working to resolve the issue.
[Read more…] about Soda 5th Floor Wireless Outage, 10/17-18

Filed Under: Resolved Incidents Services: Wireless Networking

EECS Internet Outage, 9/22/16

September 22, 2016 by Derek Calderon

EECS’ Internet connection went down at approximately 6AM due to a loss of default routes normally advertised by campus BGP. The issue was isolated and the campus NOC restored the routes shortly before 10AM.

We believe network connectivity to be fully restored at this time. If you continue to experience issues, please email help@eecs.berkeley.edu.

Resolved as of 2016-09-22 09:48:00

Filed Under: Resolved Incidents Services: Wired Networking

Cory Hall Network Maintenance, 9/15/16

September 15, 2016 by Derek Calderon

We will be reconfiguring one of the transit links out of Cory Hall tonight at 5PM. There will be no general network or service outages, but some services will have a brief interruption in connectivity:

* Private networks which transit between Cory and Soda Halls (TIER, CEC, Viper)
* Machines in Cory Hall on the 169.229.59.0/26 and 128.32.38.0/23 networks (not including EECS-PSK wireless clients)
* The primary departmental WINS (Windows Name Service) server, but the secondary will remain online
[Read more…] about Cory Hall Network Maintenance, 9/15/16

Filed Under: Resolved Incidents Services: WINS, Wired Networking

Emergency Reboot, Nanolab 3/4 Switch 8/22/16

August 22, 2016 by Derek Calderon

We will be performing an emergency reboot of the switch which provides service to the third/fourth floors of the Sutardja Dai Nanolab at 12:15 PM today, in order to clear some bad state left over from this weekend’s upgrades. The third and fourth floors of the Nanolab will be without network connectivity for approximately five minutes.
[Read more…] about Emergency Reboot, Nanolab 3/4 Switch 8/22/16

Filed Under: Resolved Incidents Services: Wired Networking, Wireless Networking

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

August 20, 2016 by Derek Calderon

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.
[Read more…] about Access Switch Upgrades, Sat-Sun 8/20-21

Filed Under: Resolved Incidents Services: Wired Networking, Wireless Networking

Border Firewall Upgrade, Sat. 7/30 3-5 PM

July 30, 2016 by Derek Calderon

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.
[Read more…] about Border Firewall Upgrade, Sat. 7/30 3-5 PM

Filed Under: Resolved Incidents Services: Wired Networking

Cory Third Floor Switch Upgrade, 7/30/16

July 30, 2016 by Derek Calderon

As a followup from this morning’s outage, we will be upgrading the firmware on one of the Cory Hall third floor access switches on Saturday at 2PM. There will be a brief wired network outage for approximately half of the floor while the switch reboots. Wireless will be unaffected.
[Read more…] about Cory Third Floor Switch Upgrade, 7/30/16

Filed Under: Resolved Incidents Services: Wired Networking

Partial Wired Network Outage, Cory 3rd Floor

July 29, 2016 by Derek Calderon

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.
[Read more…] about Partial Wired Network Outage, Cory 3rd Floor

Filed Under: Resolved Incidents Services: Wired Networking

Internet Connectivity Issue 7/21/16

July 21, 2016 by Derek Calderon

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

Filed Under: Resolved Incidents Services: Wired Networking

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