[  521.854435] bond0: (slave eth0): making interface the new active one
[  521.854514] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.027909] bond0: (slave eth0): Releasing backup interface
[  526.095177] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.258460] bond0: (slave eth0): Releasing backup interface
[  530.298412] bond0 (unregistering): Released all slaves