Good day.
We are experiencing the same problem on Cisco MDS9148 (cisco MDS 9148S 16G 48 FC (1 Slot) Chassis) with latest NX-OS 8.4.1 installed:
system image file is: bootflash:///m9100-s5ek9-mz.8.4.1.bin
MDS9148-SAN-SW1# sh logg ser
Logging server: enabled
{x.x.x.x}
This server is temporarily unreachable
server severity: critical
server facility: local1
server VRF: default
server port: 514
