[  518.981037] bond0: (slave eth0): making interface the new active one
[  518.981111] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.226809] bond0: (slave eth0): Releasing backup interface
[  523.351902] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.571019] bond0: (slave eth0): Releasing backup interface
[  527.597983] bond0 (unregistering): Released all slaves