[  501.616332] bond0: (slave eth0): making interface the new active one
[  501.616495] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.805400] bond0: (slave eth0): Releasing backup interface
[  505.886344] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.028345] bond0: (slave eth0): Releasing backup interface
[  510.061325] bond0 (unregistering): Released all slaves