[  520.648072] bond0: (slave eth0): making interface the new active one
[  520.648158] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.813256] bond0: (slave eth0): Releasing backup interface
[  524.885786] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.035759] bond0: (slave eth0): Releasing backup interface
[  529.072700] bond0 (unregistering): Released all slaves