[  513.539322] bond0: (slave eth0): making interface the new active one
[  513.539420] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.787343] bond0: (slave eth0): Releasing backup interface
[  517.904293] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.077112] bond0: (slave eth0): Releasing backup interface
[  522.118029] bond0 (unregistering): Released all slaves