How do I enable/disable logging link status per port basis on a Nexus 7000 Series Switch?

All interface link status (up/down) messages are logged by default. Link status eventscan be configured globally or per interface. The interfacecommand enables link status logging messages for a specific interface.

For example:

N7k(config)#interface ethernet x/x
N7k(config-if)#logging event port link-status