29.7.7 Combined use with IEEE802.3ah/UDLD function

This protocol does not perform fault detection and switching operations for one-way link faults. To perform switching operations when a one-way link fault occurs, use IEEE 802.3ah/UDLD functionality. IEEE 802.3ah/UDLD functionality settings are performed for ring ports connected between nodes within a ring. When IEEE 802.3ah/UDLD functionality detects a one-way link fault, it blocks the corresponding port. This means that when the master node monitoring the corresponding ring detects a ring fault, it performs switching operations.