Thank you for the replies - we've got to a point where we _think_ we're "just" tickling a known issue: 987243
In certain instances, the Ethernet interface on the UTA2 X1143-R6 adapter
and onboard ports might stop sending packets due to lack of transmission
resources.
So now we're just lining up for a reboot at a suitable outage window, and a code update later if that's done the trick.
In the interim though - does anyone know of a good workaround for rerouting my intercluster (replication) traffic?
I can't failover that interface to another node - and as the interface is "up", but not "working" my replication jobs have failed.