[  514.187711] bond0: (slave eth0): making interface the new active one
[  514.187871] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.369922] bond0: (slave eth0): Releasing backup interface
[  518.455461] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.600244] bond0: (slave eth0): Releasing backup interface
[  522.648212] bond0 (unregistering): Released all slaves