hi expert here,
i have a problem with the keepalive loopback cause the port error disable.
error logs like below:
%ETHCNTR-3-LOOP_BACK_DETECTED: keepalice packet loop-back detected on
| GigabitEthernet 0/11"
After some investigation, i know that this due to the Keepalive packet source & destination interface having the same address.
And the workaround solution provide by cisco is to disable the keepalive from the related interface. it works fine now.
But i still want to know why cause the Keepalive packet source and destination having the same address.