[Hosting] SCHEDULED MAINTENANCE: Network Gateway Migration to State Data Center (SDC) - Feb 17

[Lance Albertson]

Maintenance is complete!

We experienced a few issues during the migration which caused some outages
but I believe all of them are resolved. We learned from those issues and
hopefully the next set of subnet moves will have less outage time.

As a reminder all of these networks now have IPv6 with SLAAC enabled. I'm
working on properly setting up the OpenStack subnets this afternoon.

The remaining subnets will move one week from today during the same time
window (10am-12pm PST). I'll reach out directly to impacted projects to
confirm they are aware of this outage.

Please let me know if you have any questions!

On Fri, Feb 13, 2026 at 12:35 PM Lance Albertson <lance at osuosl.org> wrote:

> Hello,
>
> As part of our ongoing migration to the State Data Center, the Oregon
> State University Open Source Lab (OSUOSL) will be performing critical
> network maintenance on Tuesday, February 17.
>
> Maintenance Window
>
>
>
> *Start: Tuesday, Feb 17, 10:00 AM PSTEnd: Tuesday, Feb 17, 12:00 PM PST*
> This maintenance involves moving the default gateways for specific subnets
> from the Corvallis router to our new router at the State Data Center
> (SDC).
>
> Currently, traffic for many hosts physically residing in the SDC still
> routes back through our Corvallis datacenter. This creates a single point
> of failure, as the Corvallis facility is currently experiencing UPS
> reliability issues. By migrating these gateways to the SDC router, we
> eliminate this dependency on the Corvallis power infrastructure and
> significantly improve the stability and redundancy of our network. We are
> working as quickly as possible to complete these moves to safeguard your
> hosted services.
>
> *Impact*
>
> Gateways will be migrated one by one. You should expect a brief period of
> network unreachability (typically a few minutes) for each subnet as the
> cutover occurs.
>
>
> *Please note: This maintenance only covers the subnets listed below.
> Additional subnets will be moved at a later date which has yet to be
> scheduled.*
> Affected Subnets
>
> The following subnets and their associated IPv4/IPv6 ranges will be
> migrated during this window:
>
> General Servers 1: 140.211.166.0/25 | 2605:bc80:3010:101::/64
> General Servers 2: 140.211.167.128/25 | 2605:bc80:3010:102::/64
> General Servers 3: 140.211.15.0/24 | 2605:bc80:3010:103::/64
> General Servers 4: 140.211.9.0/24 | 2605:bc80:3010:104::/64
> OSL OpenStack 1: 140.211.167.0/27 | 2605:bc80:3010:501::/64
> OSL OpenStack 2: 140.211.166.224/27 | 2605:bc80:3010:502::/64
> OSL OpenStack 3: 140.211.169.128/26 | 2605:bc80:3010:503::/64
> OSL OpenStack 4: 140.211.167.64/27 | 2605:bc80:3010:504::/64
> OSL OpenStack 5: 140.211.169.0/26 | 2605:bc80:3010:505::/64
> OSL OpenStack 6: 140.211.10.64/26 | 2605:bc80:3010:506::/64
> OSL OpenStack 7: 140.211.11.0/24 | 2605:bc80:3010:507::/64
> OSL Services: 140.211.166.128/28 | 2605:bc80:3010::/64
> OSL Internal: 140.211.166.144/28 | 2605:bc80:3010:1::/64
> OSL Protected: 140.211.167.120/29 | 2605:bc80:3010:2::/64
>
>
> *IPv6 SLAAC Enabling*
> Along with the router migration, we will be enabling SLAAC (Stateless
> Address Autoconfiguration) on all of the subnets listed above. Hosts on
> these networks will automatically be assigned an IPv6 address. Please
> ensure your local firewall configurations (e.g., ip6tables, nftables) are
> updated if you wish to manage traffic for these auto-assigned addresses.
>
> For more information on our migration progress and how you can support our
> efforts, please see our latest blog post.
>
> If you have any questions or experience prolonged connectivity issues
> after the maintenance window, please reach out to us at support at osuosl.org
> .
>
> Thank you!
>
> --
> Lance Albertson
> Director
> Oregon State University | Open Source Lab
>


-- 
Lance Albertson
Director
Oregon State University | Open Source Lab
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