[  517.602980] bond0: (slave eth0): making interface the new active one
[  517.603069] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.819921] bond0: (slave eth0): Releasing backup interface
[  521.924732] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.099953] bond0: (slave eth0): Releasing backup interface
[  526.133865] bond0 (unregistering): Released all slaves