[  501.889152] bond0: (slave eth0): making interface the new active one
[  501.889257] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.059455] bond0: (slave eth0): Releasing backup interface
[  506.140892] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.282418] bond0: (slave eth0): Releasing backup interface
[  510.307236] bond0 (unregistering): Released all slaves