[  519.016436] bond0: (slave eth0): making interface the new active one
[  519.016517] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.230271] bond0: (slave eth0): Releasing backup interface
[  523.338508] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.511124] bond0: (slave eth0): Releasing backup interface
[  527.555067] bond0 (unregistering): Released all slaves