[  521.279325] bond0: (slave eth0): making interface the new active one
[  521.279417] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.448972] bond0: (slave eth0): Releasing backup interface
[  525.510514] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.678116] bond0: (slave eth0): Releasing backup interface
[  529.699060] bond0 (unregistering): Released all slaves