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IRIS

Instructional & Research Information Systems

Derek Calderon

Scheduled Network Reboot, 9/28/15 7PM

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We will be performing scheduled reboots of the Soda, Cory, and Sutardja Dai Hall aggregation routers this evening between 7 and 7:30 PM. Each building will incur a network interruption approximately five minutes long while the routers reboot.

These reboots are in order to further troubleshooting on a bug affecting SSH management access to the devices.

Please contact help@eecs.berkeley.edu with any questions, comments, or concerns.
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Soda Hall Scheduled Maintenance, Mon. 8/24 6:30PM

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We will be performing a software upgrade of the Soda Hall main router tonight at 6:30 PM. This upgrade is intended to address a software bug we have been encountering; the same upgrade was successful last week in Sutardja Dai Hall. Network service throughout the building will be impacted for approximately five minutes while the router reboots.
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Cory Hall Scheduled Maintenance, Mon. 8/24 6PM

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We will be performing a software upgrade of the Cory Hall main router tonight at 6PM. This upgrade is intended to address a software bug we have been encountering; the same upgrade was successful last week in Sutardja Dai Hall. Network service throughout the building will be impacted for approximately five minutes while the router reboots.
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Soda Hall Network Maintenance, 8/13/15 8PM

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There will be a brief network outage this evening at 8PM while we perform a software upgrade on the main router for Soda Hall. The outage will affect all Soda Hall networking as well as any services hosted in Soda Hall, and should last for approximately 5 to 10 minutes.

This is a vendor-recommended software upgrade to address bugs which have been affecting management of the device as well as some performance issues.

Please contact help@eecs.berkeley.edu with any questions or comments.
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AirBears Abatement, August 14th 2015

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At the end of the day on August 14th, the legacy AirBears wireless network will be permanently deactivated in favor of AirBears2, eduroam, and CalVisitor. To minimize interruptions, please make sure you are already switched over to one of these newer networks. If you have any trouble connecting, or are unsure which network to use, please visit http://ist.berkeley.edu/airbears or the EECS Helpdesk in 395 Cory Hall.

The original announcement from campus network services is included below. For updated information, please see ucbsystems.org, CMR# 3975.

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After many years of faithful service the AirBears wireless network is being discontinued. After August 14th access to the UC Berkeley networks and Internet will no longer be available through this SSID.

Current students, staff, faculty, and affiliates who have not already done so, are invited to create a wireless key and use the AirBears2 wireless network. AirBears2 provides full campus connectivity without the redundancy of a login portal after initial configuration.

Visitors are welcome to connect using the CalVisitor wireless network, which provides Internet and basic campus connectivity without the necessity of a guest account.

Details on available WiFi Network Services and how to connect to them is available here:

http://ist.berkeley.edu/airbears

Wired Network Partial Outage, SDH Floors 1-4 on 7/7/15

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There was a partial network outage today for floors 1-4 of Sutardja Dai Hall; the outage affected any machine on the 128.32.156.0/24 subnet which was using an address between 128.32.156.64 and 128.32.156.127 (25% of all hosts on these floors). Hosts in this address range had EECS connectivity but were unable to reach campus or the wider Internet. Wireless service in some areas was likely also influenced, as the wireless access points use this subnet for their connectivity.

Through collaboration with IST-NOS we learned that a typographical error was made while adding a new route in the campus datacenter at Earl Warren Hall, causing traffic destined for these 64 hosts to land in Warren rather than Sutardja Dai. The erroneous route was pulled and traffic is now being routed correctly.

If you continue to notice any issues, please email help@eecs.berkeley.edu.

Resolved as of 2015-07-07 17:25:00

Cory Hall Network Slowness, June 1st

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The wired network in Cory Hall was experiencing intermittent slowness today due to a router issue. We narrowed the issue down to a specific uplink, which was temporarily disabled to improve network performance. This issue occurred on the same device as yesterday’s LACP problem, and we are beginning to suspect a buggy config or device. In the coming weeks we will analyze our configurations, perform some deferred software upgrades and additional testing on this router, and open a bug ticket with the vendor if necessary.

All traffic has been diverted away from this router and we believe the issue to be resolved at this time. If you’re continuing to notice slowness or any other network issues, please email help@eecs.berkeley.edu.

Resolved as of 2015-06-01 16:30:00

Soda Hall Building Shutdown, May 30th 2015

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Soda Hall will be powered down between 0600 and 1900 on Saturday, May 30th in order to complete the electrical interconnect between Soda and Jacobs Halls. During this time the building will be completely shut down and entrance to the building will not be allowed.

We have arranged for reserve power to be provided to the network and server rooms in 288, 290, and 420A Soda, such that department and research infrastructure and services will remain online and available to users outside Soda Hall.

We recommend powering off all equipment such as desktop computers ahead of time to prevent any issues caused by unexpected power loss. Additionally, any sysadmins hosting equipment in machine rooms other than 288, 290, and 420A will need to power their machines down in advance of the outage.

Should you need access to the building during the outage (for example, you are a sysadmin who would like to take advantage of the downtime to perform deferred maintenance), please email Miles Bianchi (miles.bianchi@berkeley.edu) for consideration by the Safety Committee. This access will only be granted for special cases.

We apologize for any and all inconvenience caused by this outage. If you have any questions or concerns, please contact Derek (dcalderon@berkeley.edu) for IT issues or Miles (miles.bianchi@berkeley.edu) for facilities or safety issues.
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Intermittent Network Outages 5/4/15

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An attempt at adding a new switched link in the network core resulted in a broadcast storm which crippled the EECS network between approximately 5 and 6 PM this evening. The maintenance was rolled back and the network was allowed to stabilize. We will reattempt this maintenance in the future after we have analyzed the data gathered to determine what went wrong.
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