There seems to be a problem with the Comcast fiber connection to BWRC. The circuit was scheduled to be back up by 07:00 but is not yet. IST has been notified.
[Read more…] about BWRC Fiber Outage
Wired Networking
Wired network service
EECS border route flapping
Following IST’s scheduled move of inr-201, the EECS border router experienced frequent route flaps affecting all outbound traffic, resulting in minor packet loss. Pending further investigation, traffic has been diverted to inr-202.
Resolved as of 2009-11-04 23:20:00
BID Center network outage
(forwarded message form IS&T)
SCHED OUTAGE Hearst Memorial Mining Bldg, Soda Sept 24, 2009 06.00 pm – Sept 25, 7.00 am Equipment: hmmb4fes Location: Hearst Memorial Mining Bldg, Soda Date: Sept 24, 2009 Start: 06.00 pm End: Sept 25, 7.00 am Description: We will change the network topology for HMMB, starting on Thursday evening at 6:00 pm. This work is part of the move of our data center from Evans, to the new facility in Sutardja Dai Hall. The network in the bldg will be down for approx 13 hours, to give the fiber contractors time, to move the cables to the new location. The following subnet will be unavailable during this work:
HMMB BID 169.229.63.0/25
For the latest information on this outage, see [the IST system status website](http://ucbsystems.org/?s=6373).
SCHED OUTAGE Hearst Memorial Mining Bldg, Soda Sept 24, 2009 06.00 pm – Sept 25, 7.00 am Equipment: hmmb4fes Location: Hearst Memorial Mining Bldg, Soda Date: Sept 24, 2009 Start: 06.00 pm End: Sept 25, 7.00 am Description: We will change the network topology for HMMB, starting on Thursday evening at 6:00 pm. This work is part of the move of our data center from Evans, to the new facility in Sutardja Dai Hall. The network in the bldg will be down for approx 13 hours, to give the fiber contractors time, to move the cables to the new location. The following subnet will be unavailable during this work:
HMMB BID 169.229.63.0/25
For the latest information on this outage, see [the IST system status website](http://ucbsystems.org/?s=6373).
Resolved as of 2009-09-25 06:00:00
Soda 2nd Floor Network Outage
A switch failure disrupted networks on the Soda 2nd floor.
After seeing an alert at 11:20, network administrators discovered a failed management module in the 2nd floor switch. The module was swapped and the configuration reloaded. The switch was returned to service at 11:53am. Instructional support staff had to reboot several servers which had become stuck due to disrupted NFS traffic. All 2nd floor Instructional Labs were operational as of 12:30.
After seeing an alert at 11:20, network administrators discovered a failed management module in the 2nd floor switch. The module was swapped and the configuration reloaded. The switch was returned to service at 11:53am. Instructional support staff had to reboot several servers which had become stuck due to disrupted NFS traffic. All 2nd floor Instructional Labs were operational as of 12:30.
Resolved as of 2009-09-23 11:53:00
HMMB Fiber Optic Cutover
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
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
Fiber Optic Cutover
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
Firmware upgrade: EECS border router
Tuesday July 14th at 7:00AM, we will be upgrading software on the EECS department border router. During the outage, all EECS networks will be disconnected from the Internet, including Soda, Cory, Sutardja Dai,BWRC, and portions of HMMB. The work should only take a few minutes,but we’re reserving a 30-minute window in case of problems.
Please plan accordingly.
Cory Router to Undergo Code Maintenance
On Tuesday July 7th at 6:30am, the main Cory Router will undergo code maintenance till 7am. This will affect ALL network activity in Cory Hall with the exception of a few hard wired ports in 2nd floor campus classrooms which are connected directly to the campus network.
If all goes well, the outage will only be for a few minutes and may not
even be noticed, but there are no guarantees.
Network Services Outage
We will be doing a code upgrade and some brief tests on the switch that hosts most EECS servers and services on Tuesday, June 9th. We have scheduled a downtime from 06:00-07:30 but we are hoping to keep outages to much less than that. The new code is supposed to correct the software malfunction that caused some recent unscheduled outages to our servers. While the service affected says “wired networking”, all services are likely to be affected.
All work was completed successfully.
All work was completed successfully.
Resolved as of 2009-06-09 07:32:00
Network Maintenance for EECS network May 27th
We will sync network firmware and also upgrade the BootROM for one router in Soda 2nd floor (soda-server8810)on next Wed May 27,2009. We expect that there might be brief network outages between 6:00AM to 7:45AM.
This router serves several department servers and this will affect users who use network at that time. We regret any inconvenience this may cause. Please make your plans accordingly.
[Read more…] about Network Maintenance for EECS network May 27th