Today between 1206 and 1212, EECS networks were isolated from the outside world due to an unanticipated routing protocol behavior during a reconfiguration related to our firewall replacement project. This has been corrected and there will be no further issues.
Wireless network service
Staff are investigating intermittent disturbances in network traffic at or around the EECS border. We’ll provide updates here as we learn more.
Final Update 11/4 12:09:
This issue was caused by a DDoS or DDoS-style traffic which was overloading our firewall, which is near the end of its life. Using a number of active and passive mitigation techniques, we believe the impact of this traffic has been fully mitigated and there should be no further issues; the firewall has been stable since Friday morning. We are also accelerating the project already in the works to replace this firewall.
We have been alerted to possible PG&E power outages due to fire danger, and that campus power may be shutdown at some point over the next 2-3 days. If we receive notice of imminent shutdown, we will work to safely shutdown our NetApp fileserver and other critical infrastructure systems; this may occur on very short notice.
We will endeavor to update this News item as we receive any updates.
We recommend you proceed with shutting down any non-essential machines in advance, e.g. shutting down workstations at the end of the work day.[Read more…] about Potential Campus Power Outage
We will be performing firmware upgrades on the EECS core routers at 3AM on the mornings of Saturday 8/31, Sunday 9/1, and Monday 9/2 (Labor Day weekend). Each outage is expected to last under 20 minutes; however a full hour has been scheduled in case of unanticipated issues. Specific times and expected impact for each maintenance window is below.
These upgrades were completed successfully as of Monday 9/2 at 4AM.[Read more…] about Scheduled Network Maintenance: Labor Day Weekend 8/31 – 9/2, 3-4AM
As of 10:38am, the network connection to BWRC (Berkeley Wireless Research Center) is down. Network staff are investigating, and we’ll post updates here as they become available.[Read more…] about BWRC Network Down
A switch appears to have failed around 8PM on Sunday, causing wired and wireless network outages on the first floor of Cory Hall. We will investigate and replace the switch ASAP on Monday.
[Read more…] about Cory 1F Network Outage 11/18-19
We will be performing an upgrade of our wireless controllers tonight at 10PM. Wireless networks will be unavailable for 15-30 minutes during the upgrade.
The software update intends to resolve some existing bugs which have been triggering unexpected controller reboots, occasionally causing network outages.
This maintenance will not affect BWRC, as that controller has already been updated. All other EECS Wi-Fi locations will be affected. (Soda, Cory, SDH, Jacobs, Blum, Calvin, HMMB BiD Center)
[Read more…] about Wireless Network Maintenance, 9/18/18 10PM
Wireless networks at BWRC were not affected.
Resolved as of 2018-09-14 10:20:00
Following this morning’s IST network maintenance we are experiencing issues passing traffic in and out of BWRC. We may have identified the root cause and are working with the campus NOC to resolve.
The impact specifically seems to be traffic between BWRC and EECS. Local traffic within BWRC is not affected. General traffic to/from the Internet does not appear affected. We are unsure about traffic between BWRC and the rest of campus outside EECS.
We will be performing an experimental configuration change tomorrow morning on the related EECS routers to try and alleviate the issue until the true cause can be addressed with IST. An update will be posted here before or around noon.
[Read more…] about BWRC Uplink Issues, 8/23/18
We will be performing upgrades on the BWRC wireless network Wednesday night between 9 and 11 PM. The network will remain online but some BWRC services may be inaccessible from the wireless network during the upgrade.
The upgrade is estimated to take around 45 minutes.
[Read more…] about BWRC Wireless Maintenance 8/8/18 9PM