A network maintenance has been scheduled by our network provider for Wednesday 06/07/22 at 22:30 UTC. The maintenance should not have any visible impacts other than a few seconds of network delay while the network links switch to the backup links.
EDIT 22:30 UTC. The maintenance is starting.
EDIT 22:55 UTC: Maintenance is over, no visible impact happened, links failed over in less than 100ms each time.