Yes it seem to be correct.
when I use the command "DGT TRACE 9999" I get the following result:
DGT Trace started:
9999 : ARS 9999 + 0, ARS 9999 + 0, Route (4)
DGT Trace completed.
This route is matching my configuration.
But if I put "DGT TRACE 999" the result is as follow:
DGT Trace started:
Termination cannot be determined, more digits are required.
DGT Trace completed.
Thanks