[  512.279591] bond0: (slave eth0): making interface the new active one
[  512.279671] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.505594] bond0: (slave eth0): Releasing backup interface
[  516.604790] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.797936] bond0: (slave eth0): Releasing backup interface
[  520.823949] bond0 (unregistering): Released all slaves