[  502.552554] bond0: (slave eth0): making interface the new active one
[  502.552669] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.710325] bond0: (slave eth0): Releasing backup interface
[  506.785487] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.940416] bond0: (slave eth0): Releasing backup interface
[  510.977348] bond0 (unregistering): Released all slaves