[  508.016486] bond0: (slave eth0): making interface the new active one
[  508.016559] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.215472] bond0: (slave eth0): Releasing backup interface
[  512.310870] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.499015] bond0: (slave eth0): Releasing backup interface
[  516.537028] bond0 (unregistering): Released all slaves