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IRIS

Instructional & Research Information Systems

Wireless Networking

Wireless network service

EECS network border upgrade

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On Monday morning at 7:00-7:45am, I will update the configuration on the EECS border routers to enable BGP peering with campus and bring new 10Gbps links into production.

Subsequently, I will enable direct connectivity between EECS and the Millennium research network at 10Gbps, allowing the research systems to use the 10Gbps uplinks as well.

I have spent considerable time testing the individual changes, and no discernible disruption of connectivity is planned. However given the complexity of the changes, I’m reserving a 45 minute maintenance window.

This work will affect all networks maintained by IRIS, including Soda, Cory, Sutardja Dai, BWRC, & BID, not including AirBears.

This upgrade has been funded in part by the RAD Lab and DETER projects.

Resolved as of 2009-11-09 17:10:00

Scheduled Campus Wide Air Bears (outage)

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Description: All control servers and access managers for the AirBears Network are going to receive a software upgrade on Wednesday, October 7, 2009, from 5am to 7am. There will be an initial loss of AirBears network service for the entire campus as the primary and secondary gateways are upgraded. Once the gateways are returned to service, there will be intermittent interruptions of service, from 10 to 20 minutes in length, as the access managers are updated and restored. The entire network should be returned to normal operation by 7:00am.

The only buildings not effected by this outage are Earl Warren Hall (2195 Hearst) and 2484 Shattuck, as they have a different authentication system.

The IST service status page for this incident is http://ucbsystems.org/?s=6399

Resolved as of 2009-10-07 07:00:00

Campus Wide Emergency Unscheduled Airbears Outage

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Due to numerous reports of slowness that can be isolated to the primary AirBears gateway device, we will be reconfiguring the network to make the secondary AirBears gateway device the primary. This should not have an impact on authenticated users, but new users will not be able to get a login page during the outage. The anticipated resolution is 12:20pm.

Resolved as of 2009-10-05 12:30:00

HMMB Fiber Optic Cutover

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IST will change the network topology for HMMB, starting on Tuesday evening at 6:00 pm. This work is part of the move of the data center from Evans to the new facility in Sutardja Dai Hall. The network in the bldg will be down for approx 12 hours, to allow the fiber contractors to move the cables to the new location.

The following IST subnets will be unavailable during this work:

* HMMB CITRIS 169.229.144.0/25
* Evans-Zone-PPCS-Net
* HMMB1 128.32.120.0/24
* HMMB2 128.32.121.0/24
* HMMB mat lab 128.32.201.192/28
* HMMB Bio Eng 128.32.184.0/25
* AirBears for HMMB


The following EECS subnets will also be unavailable during this work, and again for similar work on Monday, September 21st.

BID Center 169.229.63.0/25 EECS Wireless For HMMB

Resolved as of 2009-09-18 06:00:00

Extended AirBears Outage

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IST will change the network topology for EECS, at Soda Hall, starting on Wednesday evening at 6:00 pm. This work is part of the move to the new data center from Evans, to the new facility in Sutardja Dai Hall. AirBears will be down in Soda, Cory and BWRC for approx 12 hours, to allow the fiber contractors to move the cables to the new location. The following subnet will be unavailable during this work:

EECS AirBears 136.152.170.0/24

Note: AirBears service in Sutardja Dai will NOT be disrupted. The work on August 25th was done to avoid having all of EECS offline during the subsequent fiber moves.

Resolved as of 2009-09-03 14:32:00

Fiber Optic Cutover

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Tuesday morning at 6:00 am, we are working with IST to move a number of optical circuits in Soda Hall to a different fiber cable. This work is to facilitate the move of IST network equipment from Evans to Sutardja Dai Hall. Because our routers are configured with redundant paths, only the following areas will experience a brief outage, hopefully only a minute or so each.

* DETER
* Cory General Classrooms
* EECS BID Center in HMMB
* BWRC
[Read more…] about Fiber Optic Cutover

AirBears experiencing some problems in Soda & Cory

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We are currently experiencing some problems with the AirBears Wireless LAN in both Soda and Cory. AirBears in Sutardja-Dai Hall is not affected at this time. All other EECS WLANs are not affected. IST has been notified of the issue.

The problem appeared to be a defective cable connecting the Access manager to a media converter. The cable was replaced.
[Read more…] about AirBears experiencing some problems in Soda & Cory

EECS Wireless Maintenance: Aug 19, 6:00AM

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On Wed, Aug 19, we will be doing major upgrades to some of our wireless switches. This work will start at 6:00am to 8:00am. Users except BWRC will experience some outages. We expect that some of services will start coming back up in about 30 mins at varied locations. These upgrades are providing for the continuing reliability of the wireless infrastructure services.

[Read more…] about EECS Wireless Maintenance: Aug 19, 6:00AM