[  502.612048] bond0: (slave eth0): making interface the new active one
[  502.612165] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.829463] bond0: (slave eth0): Releasing backup interface
[  506.917552] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.122387] bond0: (slave eth0): Releasing backup interface
[  511.145355] bond0 (unregistering): Released all slaves