[  514.911373] bond0: (slave eth0): making interface the new active one
[  514.911453] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.131890] bond0: (slave eth0): Releasing backup interface
[  519.229871] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.414927] bond0: (slave eth0): Releasing backup interface
[  523.446005] bond0 (unregistering): Released all slaves