[  502.602022] bond0: (slave eth0): making interface the new active one
[  502.602095] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.771453] bond0: (slave eth0): Releasing backup interface
[  506.847784] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.997527] bond0: (slave eth0): Releasing backup interface
[  511.030659] bond0 (unregistering): Released all slaves