[  504.808787] bond0: (slave eth0): making interface the new active one
[  504.808915] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.013792] bond0: (slave eth0): Releasing backup interface
[  509.080383] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.244004] bond0: (slave eth0): Releasing backup interface
[  513.276396] bond0 (unregistering): Released all slaves