While you can do it, it's not 100% reliable... As Amol pointed out a single dropped packet will cause the job to fail.
Though in most modern countries, packet loss is usually <1%, so you would just keep re-trying the job and pray it finishes before it happens. This is why NetBackup has a checkpoint restart feature, to pick up last where the checkpoint was created (e.g. every 15min, 30 min, etc)
Doable yes! Plauged with uncertainty, sadly... yes!
