The configuration looks correct. The only change would be to remove “ip flow egress” from the interfaces, by having both on all interfaces will cause traffic to show double. Not quite sure why you had to add the interfaces manually. Usually this is only done when the device is added via ICMP only or it is a VMware vSwitch which does not support SNMP. In the config the only virtual interface is the Tunnel0 which should be supported without any mapping in both NPM and NTA, unless there are others not listed like sub-interfaces or IPSEC tunnels. It seems that you are not monitoring any interfaces in NPM or SNMP is no longer working. If the physical interfaces in the config are layer 3 then all you should need to do is add them in NPM. Depending on the IOS they can run the command “snmp mib ifmib ifindex” to determine which interfaces map to the ifIndex values showing up in the events. I assume it is 1,2,12. The traffic in/out show N/A because this is gathered via SNMP and these interfaces were added manually. You need to verify SNMP is working and add the interfaces via NPM and remove the manually added interfaces from NTA and re-add them.
let us know how it turns out.
I initially had the interfaces setup for ICMP and then switched to SNMP which is working. I will do the following:
Remove the egress statement on each interface
Remove the interface
Thanks for your help. I will let you know how it goes.