[  519.322846] bond0: (slave eth0): making interface the new active one
[  519.322944] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.467049] bond0: (slave eth0): Releasing backup interface
[  523.541916] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.692811] bond0: (slave eth0): Releasing backup interface
[  527.733802] bond0 (unregistering): Released all slaves