[  516.521049] bond0: (slave eth0): making interface the new active one
[  516.521127] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.713396] bond0: (slave eth0): Releasing backup interface
[  520.777877] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.939628] bond0: (slave eth0): Releasing backup interface
[  524.964550] bond0 (unregistering): Released all slaves