[  523.016273] bond0: (slave eth0): making interface the new active one
[  523.016372] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.180956] bond0: (slave eth0): Releasing backup interface
[  527.257493] bond0: (slave eth0): Enslaving as an active interface with an up link
[  531.411250] bond0: (slave eth0): Releasing backup interface
[  531.435032] bond0 (unregistering): Released all slaves