[  514.655607] bond0: (slave eth0): making interface the new active one
[  514.655763] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.869096] bond0: (slave eth0): Releasing backup interface
[  518.948337] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.093527] bond0: (slave eth0): Releasing backup interface
[  523.116568] bond0 (unregistering): Released all slaves