[  503.982182] bond0: (slave eth0): making interface the new active one
[  503.982325] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.185910] bond0: (slave eth0): Releasing backup interface
[  508.265058] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.414549] bond0: (slave eth0): Releasing backup interface
[  512.449446] bond0 (unregistering): Released all slaves