[  521.325460] bond0: (slave eth0): making interface the new active one
[  521.325562] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.524452] bond0: (slave eth0): Releasing backup interface
[  525.596280] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.745218] bond0: (slave eth0): Releasing backup interface
[  529.783192] bond0 (unregistering): Released all slaves