[  508.160022] bond0: (slave eth0): making interface the new active one
[  508.160102] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.343655] bond0: (slave eth0): Releasing backup interface
[  512.471422] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.690071] bond0: (slave eth0): Releasing backup interface
[  516.726026] bond0 (unregistering): Released all slaves