We have recently replaced our aging Cisco 2900/3900 routers with new 4331/4451 models. Every single node now generates a dozen or so "receiving flow data from unmanaged interface #XXXXXX" error in NTA. I've ensured that 'snmp ifmib ifindex persist' is in place and all other monitoring works great. Has anyone found a resolution to this issue for the 4K routers before I start opening support cases?
We are running NTA 4.2.1