IETF Community - Level 3, the provider at our primary colocation facility, has notified us that they will be performing a card swap and software update on the router serving the IETF and RFC-Editor servers on Thursday, July 17th, beginning at 0800GMT. Procedures of this type generally take about 10 minutes, although things can certainly go wrong, and cause the outage to take longer. Because of this, Level 3 warns that the outage might take as long as 2 hours, so please be prepared for that possibility. As you may be aware, the IETF public website is now supported by a content delivery network, and so the public website should not be impacted. Note, however, that the Datatracker will be unavailable during the outage period, as will other dynamic services such as the RFC Editor website, Mailman, the mail archive tool, and Jabber. Those services are not cached by any content delivery network. Email sent to mailing lists will be held by your sending servers, and forwarded on automatically when the upgrade is complete, but list traffic will be halted during the process. AMS staff will be online during the outage window to monitor and be online during the upgrade process. Please be assured that we are aware of the planned outage and will be watching it. Thank you for your support as our colocation vendor performs this upgrade. Thanks, Glen Glen Barney IT Director AMS (IETF Secretariat)