[  514.458208] bond0: (slave eth0): making interface the new active one
[  514.458295] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.687181] bond0: (slave eth0): Releasing backup interface
[  518.791857] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.973030] bond0: (slave eth0): Releasing backup interface
[  523.000889] bond0 (unregistering): Released all slaves