[  516.183115] bond0: (slave eth0): making interface the new active one
[  516.183201] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.411628] bond0: (slave eth0): Releasing backup interface
[  520.525598] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.704774] bond0: (slave eth0): Releasing backup interface
[  524.741700] bond0 (unregistering): Released all slaves