This object indicates the number of one-way messages that
failed delivery to the end point. This count includes only
those messages that do not require a response from the
end point. However in case the AON node is not the exit node
but rather an entry or intermediate node hop in the AON cloud
then this counter represents failed delivery to the next hop.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other times
as indicated by the value of caonCounterDiscontinuityTime
object.