tmnxDot1agCfmMepSlmOWTestEntry contains the configuration for
generating Synthetic Loss Measurement (SLM) Tests for a particular MEP.
A row exists for each row in the dot1agCfmMepTable, and is destroyed
automatically with the removal of a row in the dot1agCfmMepTable.
Results from a one-way SLM test are reported in
tmnxDot1agCfmMepSlmTestRsltTable with tmnxDot1agCfmMepSlmTestType set
to 'oneWayTest (1)'.