[  514.550525] bond0: (slave eth0): making interface the new active one
[  514.550642] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.738656] bond0: (slave eth0): Releasing backup interface
[  518.819674] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.969304] bond0: (slave eth0): Releasing backup interface
[  523.001343] bond0 (unregistering): Released all slaves