[  514.734498] bond0: (slave eth0): making interface the new active one
[  514.734583] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.941804] bond0: (slave eth0): Releasing backup interface
[  519.054950] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.230901] bond0: (slave eth0): Releasing backup interface
[  523.256902] bond0 (unregistering): Released all slaves