[  514.936871] bond0: (slave eth0): making interface the new active one
[  514.936987] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.136620] bond0: (slave eth0): Releasing backup interface
[  519.212432] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.358366] bond0: (slave eth0): Releasing backup interface
[  523.390278] bond0 (unregistering): Released all slaves