[  508.331686] bond0: (slave eth0): making interface the new active one
[  508.331779] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.531803] bond0: (slave eth0): Releasing backup interface
[  512.652662] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.816803] bond0: (slave eth0): Releasing backup interface
[  516.833717] bond0 (unregistering): Released all slaves