[  513.787947] bond0: (slave eth0): making interface the new active one
[  513.788037] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.973310] bond0: (slave eth0): Releasing backup interface
[  518.077395] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.257009] bond0: (slave eth0): Releasing backup interface
[  522.295017] bond0 (unregistering): Released all slaves