[  513.763095] bond0: (slave eth0): making interface the new active one
[  513.763187] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.984090] bond0: (slave eth0): Releasing backup interface
[  518.099934] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.268041] bond0: (slave eth0): Releasing backup interface
[  522.289063] bond0 (unregistering): Released all slaves