[  524.611018] bond0: (slave eth0): making interface the new active one
[  524.611109] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.785822] bond0: (slave eth0): Releasing backup interface
[  528.850870] bond0: (slave eth0): Enslaving as an active interface with an up link
[  533.016570] bond0: (slave eth0): Releasing backup interface