We will upgrade the main moodle/ULCC firewall first at 07:00, resulting in a brief (<5 minute) loss of service. This will be followed at approximately 07:30 by an upgrade of one of ULCC's core switches, resulting in another brief (<10 minute) loss of service.

While we anticipate the disruption will be contained to these two windows, service should be considered at-risk for the entire at-risk window.