[  516.600943] bond0: (slave eth0): making interface the new active one
[  516.601037] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.794282] bond0: (slave eth0): Releasing backup interface
[  520.902990] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.085062] bond0: (slave eth0): Releasing backup interface
[  525.106986] bond0 (unregistering): Released all slaves