[  513.157308] bond0: (slave eth0): making interface the new active one
[  513.157394] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.325957] bond0: (slave eth0): Releasing backup interface
[  517.412467] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.612396] bond0: (slave eth0): Releasing backup interface
[  521.629310] bond0 (unregistering): Released all slaves