etsysEthOamExtUldPortMode 1.3.6.1.4.1.5624.1.2.78.1.3.2.1.1

This value defines the mode in which OAM Unidirectional Link Detection (ULD) will operate on the port. If disabled, OAM ULD will not operate on the port. In standard mode, OAM will use the standard OAM Discovery state machine to detect a unidirectional link. In fast mode, OAM will use the Enterasys Fast ULD state machine to detect a unidirectional link. In both standard and fast modes, OAM peers must be fully discovered before ULD is active. In standard mode, a unidirectional link is detected after 5 seconds of becoming unidirectional. In fast mode, a unidirectional link is detected in 3 times the active fast timer interval (as fast as 600ms).