We're evaluating NF9 and its IP SLA functions. We have successfully implemented NF9 IP SLA in our lab. However, we're unable to receive alerts when we have shut down the destination interface. 

We checked your documentation and found the following:

. Why there are no alerts from the device?

You might not have received alerts from the device if the trap host is not configured in the  source Router. Make sure you configure the routers to send traps to NetFlow Analyzer. Telnet the router and type the following command:

snmp-server host <netflowanalyzer server IP> traps <host community string> rtr

For instance, if the NetFlow Analyzer's host IP Address is 192.168.18.128, and the community string is private, the command would be:

snmp-server host 192.168.18.128 traps private rtr

We followed the above instructions, but we're still not receiving any alerts.

Can you help

Regards

Paul