The upgrades have been completed.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Previous Description (December 17, 2019 12:55):

Please be advised that on Wed Jan 1 2020, ITS will be performing a network upgrade to the core aggregation routers. The planned upgrade period is between 9am and 2pm

Although an outage is not expected it cannot be ruled out for the following buildings:

Abramsky, Bagot 220, Beamish, Bruce, Carruthers, Cataraqui, Clark, Craine, Douglas, Dunning, Ellis, Etherington, Fleming Jemmett and Pollack, Goodwin, Gordon, Grant, Haynes, HDRMC, Humphrey, Jackson, Kathleen Ryan, Kingston, Lasalle, Macdonald, MacGillivry, McLaughlin, Miller, Nicol, Ontario, Richardson, Richardson Labs, Stuart St and Union St. Parking (non PCI), Theology, University Club, Watkins and Watson. Individual houses may also be affected.
These upgrades are necessary to maintain the security and integrity of the network.