[  507.299196] bond0: (slave eth0): making interface the new active one
[  507.299302] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.499701] bond0: (slave eth0): Releasing backup interface
[  511.577216] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.730366] bond0: (slave eth0): Releasing backup interface
[  515.772346] bond0 (unregistering): Released all slaves