[  516.064965] bond0: (slave eth0): making interface the new active one
[  516.065083] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.345868] bond0: (slave eth0): Releasing backup interface
[  520.459509] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.635981] bond0: (slave eth0): Releasing backup interface
[  524.666910] bond0 (unregistering): Released all slaves