Since we have installed Netflow, we continue to see events that state the following: "Netflow Receiver Service is receiving a Netflow data stream from an unmaged interface on 'Device name'. Netflow data stream will be disgarded. Please follow the link 'link name' or use the Orion System Manager to add interface #'interface #' in order to process this Netflow data stream."
I have looked up the interface numbers and these are interfaces that are not being used. Why is netflow picking up interfaces that are not in service and how do I fix it? I get several events an hour from several devices.
We are using mostly cisco Routers 3825's and Cisco Switches 3750's.
Can you take a packet capture from the NTA collector interface and see what IfIndex the exports show?