[  508.071012] bond0: (slave eth0): making interface the new active one
[  508.071087] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.272561] bond0: (slave eth0): Releasing backup interface
[  512.335072] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.502419] bond0: (slave eth0): Releasing backup interface
[  516.531225] bond0 (unregistering): Released all slaves