[  519.000836] bond0: (slave eth0): making interface the new active one
[  519.000910] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.143340] bond0: (slave eth0): Releasing backup interface
[  523.202406] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.372581] bond0: (slave eth0): Releasing backup interface
[  527.408523] bond0 (unregistering): Released all slaves