[  513.293997] bond0: (slave eth0): making interface the new active one
[  513.294062] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.527750] bond0: (slave eth0): Releasing backup interface
[  517.636709] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.813955] bond0: (slave eth0): Releasing backup interface
[  521.853966] bond0 (unregistering): Released all slaves