[  520.881239] bond0: (slave eth0): making interface the new active one
[  520.881362] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.066973] bond0: (slave eth0): Releasing backup interface
[  525.138803] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.290951] bond0: (slave eth0): Releasing backup interface
[  529.314822] bond0 (unregistering): Released all slaves