[  516.362574] bond0: (slave eth0): making interface the new active one
[  516.362699] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.533718] bond0: (slave eth0): Releasing backup interface
[  520.626763] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.819296] bond0: (slave eth0): Releasing backup interface
[  524.860267] bond0 (unregistering): Released all slaves