[  512.124874] bond0: (slave eth0): making interface the new active one
[  512.124958] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.314000] bond0: (slave eth0): Releasing backup interface
[  516.431461] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.605024] bond0: (slave eth0): Releasing backup interface
[  520.651046] bond0 (unregistering): Released all slaves