[  520.869872] bond0: (slave eth0): making interface the new active one
[  520.869957] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.069107] bond0: (slave eth0): Releasing backup interface
[  525.133322] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.293980] bond0: (slave eth0): Releasing backup interface
[  529.329926] bond0 (unregistering): Released all slaves