[  514.536026] bond0: (slave eth0): making interface the new active one
[  514.536159] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.742676] bond0: (slave eth0): Releasing backup interface
[  518.824099] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.970455] bond0: (slave eth0): Releasing backup interface
[  522.988413] bond0 (unregistering): Released all slaves