[  505.335030] bond0: (slave eth0): making interface the new active one
[  505.335313] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.599591] bond0: (slave eth0): Releasing backup interface
[  509.702821] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.886814] bond0: (slave eth0): Releasing backup interface
[  513.914594] bond0 (unregistering): Released all slaves