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Derek Calderon

Soda 5F Wi-Fi Outage 5/4/17

May 4, 2017 by Derek Calderon

Half of the wireless APs in 5th floor Soda were offline due to a failure of the PoE switch. Issue has been worked around and switch will be replaced. Network should be fully available at this time.

Resolved as of 2017-05-04 14:10:00

Filed Under: Resolved Incidents Services: Wireless Networking

Soda Aggregation Router Upgrade, 5/2/17

May 2, 2017 by Derek Calderon

We will be performing a software upgrade of the Soda Hall aggregation router at 6:30 AM on Tuesday, May 2nd. Wired and wireless networks in Soda Hall will be unavailable for 5-10 minutes while the router reboots. BWRC will also be cut off from the outside world during this time as its uplink is dependent on this router.

The Millennium research network will not be affected.

This upgrade is being performed to resolve certain bugs in the current software version so that we can move forward with our early-stage IPV6 deployment, which is currently targeted for this summer.
[Read more…] about Soda Aggregation Router Upgrade, 5/2/17

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

Wireless Network Outage, Soda 3rd fl. South

April 12, 2017 by Derek Calderon

There is currently a wireless outage in the south portion of the 3rd floor of Soda Hall (serving the CS division offices). Network may be available but slow due to coverage from nearby APs. Staff are investigating.
[Read more…] about Wireless Network Outage, Soda 3rd fl. South

Filed Under: Resolved Incidents Services: Wireless Networking

Degraded Network Performance

March 13, 2017 by Derek Calderon

EECS is currently experiencing degraded network performance. Network staff are investigating. Updates will be posted here when available.
[Read more…] about Degraded Network Performance

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

SDH Floors 5-7 Network Outage, 2/8/17

February 8, 2017 by Derek Calderon

Wired and wireless are currently offline in floors 5-7 of Sutardja Dai Hall due to an apparent switch failure. Nanolab is unaffected.

Staff are coming onsite to investigate.
[Read more…] about SDH Floors 5-7 Network Outage, 2/8/17

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

Wireless Controller Upgrade, Jan. 26 2017

January 26, 2017 by Derek Calderon

We will be performing an emergency upgrade of our wireless controllers tonight beginning at 9:30PM to address a bug which has been causing periodic controller crashes that bring down the wireless network. The last outage generated by this bug was on Jan. 18, but we also experience more frequent crashes that do not affect production due to redundancy.

The controllers have the capability for a hitless upgrade (upgrade without affecting service), however we have had mixed experience with this feature in the past. We expect there may be an outage of 10-15 minutes while the controllers reload after the upgrade.

This maintenance will affect wireless networks in Soda, Cory, Sutardja Dai, Blum, and Jacobs Halls, as well as the Calvin Lab, BWRC, and BiD Lab in HMMB.

Please direct any questions about the upgrade to help@eecs.berkeley.edu.
[Read more…] about Wireless Controller Upgrade, Jan. 26 2017

Filed Under: Resolved Incidents Services: Wireless Networking

Brief Wireless Network outage

January 18, 2017 by Derek Calderon

All wireless networks were unavailable for approximately 12-15 minutes due to a simultaneous crash of our primary and backup wireless controllers.

The controllers recovered and APs automatically rejoined; all APs should be back online now.

We are investigating the cause of the crash and any possible steps we can take to prevent this from occurring again.

Resolved as of 2017-01-18 16:31:00

Filed Under: Resolved Incidents Services: Wireless Networking

Changes to EECS-Secure, Thurs Jan. 12th

January 10, 2017 by Derek Calderon

Overnight between Wed. 1/11 and Thurs. 1/12 we will be transitioning EECS-Secure to a new authentication backend. The old servers, etips1.eecs.berkeley.edu and nps-0.eecs.berkeley.edu will be retired and replaced with a new cluster which will identify itself as clearpass.eecs.berkeley.edu. There will be no interruption to wireless connectivity during the transition.

EECS-Secure will continue to function as it has, but your computer may notice the change in server certificates and prompt you about it. We are listing some steps below that may be helpful if you have trouble connecting on Thursday morning, and remember that you will be able to use other networks (e.g. AirBears2, CalVisitor) to visit this page and the EECS-Secure FAQ.

Windows 10:
* “Continue connecting? If you expect to find EECS-Secure in this location, go ahead and connect.”
* You can click “Connect”, but first we recommend clicking “Show certificate details” and verifying the thumbprint against the Server Certificate at the EECS-Secure FAQ link below.

Mac OS:
* “Before authenticating to the server ‘clearpass.eecs.berkeley.edu’, you should examine the server’s certificate to ensure that it is appropriate for this network.”
* Verify that the server name is “clearpass.eecs.berkeley.edu” and click “Show Certificate” to confirm that the certificate is valid; then click “Continue” to connect.

Linux:
* We have seen many different behaviors depending on distro and version. If you have trouble, we recommend deleting the saved network and reconnecting, making sure to check the authentication details in the EECS-Secure FAQ, which is linked below.

If the above aren’t helpful to you, you might try following the Linux advice by deleting your saved EECS-Secure and reconnecting from scratch. In any case, if you have trouble, please visit the helpdesk in 395 Cory Hall.

More information about EECS-Secure authentication, including configuration details, certificates, and certificate fingerprints can be found on the EECS-Secure FAQ:
https://iris.eecs.berkeley.edu/15-faq/21-network/eecs-secure.html

This change ONLY applies to EECS-Secure and will not affect any other networks, such as EECS-PSK, AirBears2, etc.

If you have been using EECS-RADtest to help us test the new servers, that network is no longer available and we strongly recommend you remove the saved network from your machine.

As a reminder, mobile devices are not fully supported on EECS-Secure. Depending on device and OS version, you may be able to connect, but we can provide only limited support. If you can’t connect to EECS-Secure, we recommend using CalVisitor, or EECS-PSK if you require EECS network access.

If you have any questions or problems, you may visit the helpdesk at 395 Cory Hall or help@eecs.berkeley.edu.

Filed Under: News

EECS Full Network and Service Outage, Thurs. 12/22/16 7:30AM

December 22, 2016 by Derek Calderon

We will have a full system shutdown on Thursday, December 22nd at 7:30 AM to perform necessary fire and emergency power testing in our server rooms. The entire EECS network and all hosted resources will be offline during this maintenance.

This will affect networking in the following locations:

Wired and wireless networks offline:
* Soda Hall
* Cory Hall
* Sutardja Dai Hall
* Jacobs Hall
* BWRC

Wireless networks offline, wired remains online:
* Blum Hall
* Calvin Lab

Hosted resources such as the EECS website, file servers, etc. will be offline and globally inaccessible.

The facilities maintenance window is scheduled from 7:30 AM to 1 PM, but we anticipate the network and critical services should be back by 11AM if all goes well.

The intent is to perform these tests annually going forward; however we will learn from this year’s procedure and aim to keep more critical services online in the future.

If you have any questions about this maintenance, please contact help@eecs.berkeley.edu.
[Read more…] about EECS Full Network and Service Outage, Thurs. 12/22/16 7:30AM

Filed Under: Resolved Incidents Services: Active Directory, DHCP, DNS, FTP Server, Home Directory Storage, IRIS Website, Mailing Lists, Project Storage, Repo Service, Unix Login Server, Wiki Hosting, winterm.eecs, Wired Networking, Wireless Networking

Network Outage, SDH 2-4th floors, 10/27/16

October 27, 2016 by Derek Calderon

We have just experienced an outage of a main switch which serves wired and wireless on the 2nd, 3rd, and 4th floors of SDH. Network staff are investigating and will repair ASAP.
[Read more…] about Network Outage, SDH 2-4th floors, 10/27/16

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

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