A bnLogMsgBufferFull trap is sent when either
the volatile log message buffer space or the
non-volatile log message buffer space is exhausted.
          
An agent will generate this trap only once when
it is determined that the buffer facilities are
exhausted.  This trap will not be sent again until
the message storage facilities are cleared via the
bnLogMsgBufferClearMsgs object. Note that, for
example, clearing only the volatile storage space
when the non-volatile space is full will result in
another trap being generated when the non-volatile
space is next found to be full (e.g., when the next
log message to be saved in non-volatile storage is
generated).