[  503.790429] bond0: (slave eth0): making interface the new active one
[  503.790517] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.989500] bond0: (slave eth0): Releasing backup interface
[  508.052307] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.214586] bond0: (slave eth0): Releasing backup interface
[  512.245540] bond0 (unregistering): Released all slaves