[  502.606599] bond0: (slave eth0): making interface the new active one
[  502.606673] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.771939] bond0: (slave eth0): Releasing backup interface
[  506.839159] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.995298] bond0: (slave eth0): Releasing backup interface
[  511.014267] bond0 (unregistering): Released all slaves