[  504.018885] bond0: (slave eth0): making interface the new active one
[  504.019013] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.182167] bond0: (slave eth0): Releasing backup interface
[  508.261000] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.407537] bond0: (slave eth0): Releasing backup interface
[  512.435387] bond0 (unregistering): Released all slaves