[  516.040200] bond0: (slave eth0): making interface the new active one
[  516.040296] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.210358] bond0: (slave eth0): Releasing backup interface
[  520.293615] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.439428] bond0: (slave eth0): Releasing backup interface
[  524.475513] bond0 (unregistering): Released all slaves