Wired Networking

Wired network service

Soda Hall Power Shutdown Tuesday 8/18 8am-8pm

August 12, 2020 by Derek Calderon

On Tuesday, August 18th, Soda Hall building power will be shutdown from approximately 8am to 8pm for required facilities work. There will also be sporadic brief outages to various IRIS services between 9am and 2pm due to network maintenance.

Our primary datacenter and network core will receive backup generator support and we generally expect all services to remain online throughout the day. However, we are taking the opportunity to perform a number of network maintenance items which would have otherwise necessitated multiple outages later in the year.

As a result there will be multiple brief interruptions to various services including NetApp file servers, DHCP and DNS service, and the login.eecs and winterm terminal servers. We expect each individual interruption will last for less than five minutes, and this work will be performed between 9AM – 2PM. This post will be updated when all network maintenance is complete.

After network services are fully restored, sysadmins may need to reboot their systems, restart/remount nfs file systems, etc. to get fully back online.

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Jacobs Hall Network Outage 2/20/20

February 20, 2020 by Derek Calderon

The Jacobs Hall network was unstable from approximately 11AM to 11:45AM due to a router malfunction. We restored service and will continue to monitor the router. Please email help@eecs.berkeley.edu if you continue to notice a problem.

Brief Network Border Interruption

November 5, 2019 by Derek Calderon

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.

Intermittent Network Trouble at EECS Border

October 25, 2019 by Lars Rohrbach

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.

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Potential Campus Power Outage

October 8, 2019 by Lars Rohrbach

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.

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Scheduled Network Maintenance: Labor Day Weekend 8/31 – 9/2, 3-4AM

August 16, 2019 by Derek Calderon

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.

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BWRC Network Down

July 17, 2019 by Lars Rohrbach

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.

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Cory 1F Network Outage 11/18-19

November 18, 2018 by Derek Calderon

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.
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BWRC Uplink Issues, 8/23/18

August 23, 2018 by Derek Calderon

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.
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HMMB BiD Center Wired Network Outage 7/13/18 – Ongoing

July 13, 2018 by Derek Calderon

The EECS wired network in the HMMB BiD center (169.229.63.0/25) is currently down due to a link issue. According to our router, the link has been down since Friday 7/13 at 22:47.

This part of the network is a little unusual, in that it is served by an EECS router but an IST switch and IST cabling for the last-mile. We have confirmed there seems to be no issue on our end and are working with IST networks toward a resolution.

Wireless networks in HMMB are not affected, including EECS-Secure and EECS-PSK.

Update 12:03 PM: We are in contact with IST Network Operations and they are aware of the severity of the issue. Due to heavy workload, they may not be able to address the issue until tomorrow, but they will look at it as soon as possible.
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