[  514.444474] bond0: (slave eth0): making interface the new active one
[  514.444598] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.612704] bond0: (slave eth0): Releasing backup interface
[  518.685301] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.835220] bond0: (slave eth0): Releasing backup interface
[  522.875255] bond0 (unregistering): Released all slaves