[  519.705963] bond0: (slave eth0): making interface the new active one
[  519.706074] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.850255] bond0: (slave eth0): Releasing backup interface
[  523.924133] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.075533] bond0: (slave eth0): Releasing backup interface
[  528.102965] bond0 (unregistering): Released all slaves