[  520.863565] bond0: (slave eth0): making interface the new active one
[  520.863665] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.085513] bond0: (slave eth0): Releasing backup interface
[  525.200590] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.433110] bond0: (slave eth0): Releasing backup interface
[  529.466095] bond0 (unregistering): Released all slaves