OK so I have been using UDT for about a day. For a first version I say it is impressive. The networking, systems and security folks are very interested.
I have tried it on an array of switches and I find that unless I am doing something wrong there are some it does not work with and I am talking Cisco. Below are my findings. If someone could address this or confirm my findings I would appreciate it.
Nexus 7000 - Works
Nexus 5020 - does not work (and this is a huge negative for us as finding servers would be why systems would want it)
6500 Sup720 - does not work
4500-Sup6E - works