[  516.063167] bond0: (slave eth0): making interface the new active one
[  516.063281] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.276703] bond0: (slave eth0): Releasing backup interface
[  520.355476] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.504174] bond0: (slave eth0): Releasing backup interface
[  524.529134] bond0 (unregistering): Released all slaves