We currently have malicious network traffic incoming affecting connectivity to the below servers:
xn4, xn5, xn6, xn8
It seems only 22.214.171.124/24 is targeted, systems on other subnets are fine.
Update: After some process of elimination, this looks like a possible malfunction with the NIC on xn4, which is causing a traffic storm on the subnet. XN5, XN6 + XN8 are restored.
Update 2: We are going to move to the 2nd NIC on XN4 with a new cable + switchport.
Update 3: The traffic has returned to xn5/6/7 and we are working to mitigate.
Update 4: XN5/Xn6/Xn8 restored. XN4 being worked on
Update 5: All systems are now up and we will be following this up with our datacentre in the morning.