[  520.938211] bond0: (slave eth0): making interface the new active one
[  520.938317] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.126205] bond0: (slave eth0): Releasing backup interface
[  525.192022] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.350031] bond0: (slave eth0): Releasing backup interface
[  529.370092] bond0 (unregistering): Released all slaves