I got a request from a friend to describe the Netflow top talkers feature. Netflow is a Cisco proprietary protocol that is used to see which protocols are used in your network and how much traffic they are generating. Netflow
We start out with a basic topopology of 3 routers. R2 and R3 will peer to each others loopback. I have setup OSPF for full reachability in the network. First we test connectivity.
R2#ping 22.214.171.124 so lo0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 126.96.36.199, timeout is 2 seconds:
Packet sent with a source address of 188.8.131.52
Success rate is 100 percent (5/5), round-trip min/avg/max = 40/53/80 ms
There is connectivity. We setup the