[  514.912670] bond0: (slave eth0): making interface the new active one
[  514.912751] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.132787] bond0: (slave eth0): Releasing backup interface
[  519.260595] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.483748] bond0: (slave eth0): Releasing backup interface
[  523.516766] bond0 (unregistering): Released all slaves