etsysEthOamExtUldPortAction 1.3.6.1.4.1.5624.1.2.78.1.3.2.1.2

This value defines the administrative action taken by OAM if a unidirectional link is detected. If the action is syslogOnly, OAM will generate a syslog message. If the action is disablePort, OAM will generate a syslog message and disable the port.