[  514.112436] bond0: (slave eth0): making interface the new active one
[  514.112507] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.289201] bond0: (slave eth0): Releasing backup interface
[  518.366346] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.520298] bond0: (slave eth0): Releasing backup interface
[  522.559360] bond0 (unregistering): Released all slaves