This object specifies the time interval used to monitor
the ciscoGrtNoRouteMSUDiscards notifications generated
for a signalling point instance. The first occurrence of
ciscoGrtNoRouteMSUDiscards notifications in this interval
is sent and the further occurrences of notifications in
this interval are suppressed.
At the end of this interval, a notification is sent with
total number of MSUs discarded due to routing data error
during this interval.