[  514.333211] bond0: (slave eth0): making interface the new active one
[  514.333295] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.548363] bond0: (slave eth0): Releasing backup interface
[  518.645967] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.841006] bond0: (slave eth0): Releasing backup interface
[  522.875013] bond0 (unregistering): Released all slaves