[  516.373618] bond0: (slave eth0): making interface the new active one
[  516.373719] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.530922] bond0: (slave eth0): Releasing backup interface
[  520.605677] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.757449] bond0: (slave eth0): Releasing backup interface
[  524.795434] bond0 (unregistering): Released all slaves