[  514.175995] bond0: (slave eth0): making interface the new active one
[  514.176075] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.424839] bond0: (slave eth0): Releasing backup interface
[  518.537031] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.711927] bond0: (slave eth0): Releasing backup interface
[  522.741832] bond0 (unregistering): Released all slaves