Description: Each row represents a local user database mask.

Entries in this table can be created or deleted via SNMP operations.
        
An incoming string of the type that corresponds to the value of the
tmnxLocUsrDbPppoeMaskMatchType index of this conceptual row 
is matched with the object in the tmnxLocUsrDbPppoeTable  
that corresponds to the values of the  
tmnxLocUsrDbUserDatabaseName and tmnxLocUsrDbPppoeMaskMatchType 
indices in this conceptual row:

match type    | object
--------------------------------------------
circuitId     | tmnxLocUsrDbPppoeCircuitId
macAddr       | tmnxLocUsrDbPppoeMacAddress
remoteId      | tmnxLocUsrDbPppoeRemoteId
userName      | tmnxLocUsrDbPppoeUserName
serviceName   | tmnxLocUsrDbPppoeServiceName
sapId         | tmnxLocUsrDbPppoeSapId