[  516.254201] bond0: (slave eth0): making interface the new active one
[  516.254295] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.469782] bond0: (slave eth0): Releasing backup interface
[  520.570865] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.757819] bond0: (slave eth0): Releasing backup interface
[  524.780658] bond0 (unregistering): Released all slaves