[  519.490298] bond0: (slave eth0): making interface the new active one
[  519.490372] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.657790] bond0: (slave eth0): Releasing backup interface
[  523.731712] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.889457] bond0: (slave eth0): Releasing backup interface
[  527.908452] bond0 (unregistering): Released all slaves