[  506.601425] bond0: (slave eth0): making interface the new active one
[  506.601542] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.802435] bond0: (slave eth0): Releasing backup interface
[  510.890215] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.095749] bond0: (slave eth0): Releasing backup interface
[  515.121834] bond0 (unregistering): Released all slaves