On December 12 2017 from 9:30am to 2:30pm ACDT, the SA NeCTAR node will be performing a scheduled network infrastructure upgrade
All instances in the SA zone will continue to run as normal, however they will not be accessible during this time. Any services on instances requiring external connectivity (e.g. web hosting) will not be able to connect during the outage.
Users will need to aware that during the outage period, their instances will not be accessible.