[  518.770123] bond0: (slave eth0): making interface the new active one
[  518.770199] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.992440] bond0: (slave eth0): Releasing backup interface
[  523.098627] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.283873] bond0: (slave eth0): Releasing backup interface
[  527.318847] bond0 (unregistering): Released all slaves