[  513.335103] bond0: (slave eth0): making interface the new active one
[  513.335195] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.595214] bond0: (slave eth0): Releasing backup interface
[  517.701252] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.876872] bond0: (slave eth0): Releasing backup interface
[  521.911861] bond0 (unregistering): Released all slaves