It's unclear which circuits will be affected by this maintenance. Zayo does not specify the circuits, just their equipment. Some of our circuits from them look like layer2 ethernet links, but are actually l2circuits that go through their layer3 routers. I will contact them to see if they can provide more information. If they will only be taking down our link to the the Internet at PAO1, then I do not expect there to be much impact to our network. We have enough redundancy to handle that. Here is their notification: Dear Zayo Customer, Zayo Maintenance Notification This email serves as official notification that Zayo and/or one of its providers will be performing maintenance on its network as described below. This maintenance may affect services you have with us. Maintenance Ticket #: TTN-0000608831 Urgency: Planned Date Notice Sent: 12/30/2014 Maintenance Window: 00:00 - 05:00 Pacific Primary Date: 30-Jan 2015 Backup Date: 31-Jan 2015 Location of Maintenance: 529 Bryant St. Palo Alto CA Reason for Maintenance: Zayo will perform maintenance to upgrade firmware on router mpr2.pao1.us. Expected Impact: SA (Service Affecting) DOWN UP TO 30 MINUTES Service ID: T00539-05 If you have any questions or concerns, please feel free to call the Zayo Network Control Center at one of the following numbers. Thank you, Zayo Maintenance Team | Zayo Group US Toll free: 1.866.236.2824 Opt 4 US Local: 1.918.295.7191 UK Toll free: +44.0.800.169.1646 Email: email@example.com Website: http://www.zayo.com Online Time Zone Converter: http://www.timezoneconverter.com/cgi-bin/tzc.tzc
I spoke with Zayo about this. The "service id" used in this notification is a legacy circuit ID. The technician I spoke with said that we do not have any circuits that terminate on this router -- but we may have circuits that transit through it. If so, they will re-route during this maintenance. So, according to the technician I spoke with, this is a "potential outage", but should just be a re-route of circuits. (which should be transparent to us) That said, given the confusion with Zayo using legacy circuit IDs, and the technician at Zayo having to reference various pieces of documentation to try to give me a definitive answer... I'd say we want to be aware that there could be some disruption to our network during this time.