This object sets how often, in units of 100 milliseconds, periodic OAMPDUs are transmitted to and expected from the peer on this Ethernet OAM entity. Lowering the value makes OAM keepalive exchanges more frequent, useful for faster link-fault detection, while raising it reduces OAMPDU traffic at the cost of slower fault detection; the default of 10 means one exchange per second. An admin who needs sub-second fault detection on a critical uplink might set this object to 1, causing OAMPDUs to be exchanged every 100 milliseconds instead of the default one second.