NTA does not seam to be listening on the port I configured to listen on.

I am trying to get NAT to receive data from a Dell switch.  I have the switch sending sflow data to the IP of NTA and port configured in NTA.  The switch shows all messages are dropped on this IP:port.  I do not see any activity in NTA Flow Sources or CBQoS management, All messages are Last received: Never Received.  Is this a supported data transfer for NTA?  On the NPM/NTA server, netstat does not show a listening port for NTA, but does for NPM(80).  Also telnet to the IP:<NTA Port>, I get Connection refused.  telnet to IP:<NPM Port, ie:80> shows a valid listener.


Scott Van Caster