[  514.472735] bond0: (slave eth0): making interface the new active one
[  514.472833] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.684013] bond0: (slave eth0): Releasing backup interface
[  518.816570] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.042069] bond0: (slave eth0): Releasing backup interface
[  523.070113] bond0 (unregistering): Released all slaves