[  515.892330] bond0: (slave eth0): making interface the new active one
[  515.892443] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.156578] bond0: (slave eth0): Releasing backup interface
[  520.267843] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.447700] bond0: (slave eth0): Releasing backup interface
[  524.484143] bond0 (unregistering): Released all slaves