[  513.175307] bond0: (slave eth0): making interface the new active one
[  513.175451] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.332723] bond0: (slave eth0): Releasing backup interface
[  517.417213] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.555188] bond0: (slave eth0): Releasing backup interface
[  521.581101] bond0 (unregistering): Released all slaves