[  502.299699] bond0: (slave eth0): making interface the new active one
[  502.299782] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.448393] bond0: (slave eth0): Releasing backup interface
[  506.511896] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.674163] bond0: (slave eth0): Releasing backup interface
[  510.703140] bond0 (unregistering): Released all slaves