I have two Cisco switches in the same VLAN, physically connected to each other. One of the switches is a 3650, and the other is a 4948. On the 3650, I can see MAC flapping messages between 2 ports, one of which is the port that has the cable that goes to the other switch. On the 4948, I don't see any MAC flapping messages despite the fact that I have seen the same MAC address on the port that goes to the 3650, and on another port on this switch.
Why is this happening and how can I fix it so that I also see MAC flapping messages on the 4948?
I have the following logging configuration:
- logging buffered informational
- logging buffered 64000
- logging event link-status global
- logging event link-status (configured under each physical interface, since the global configuration didn't seem to be working)