[  502.135122] bond0: (slave eth0): making interface the new active one
[  502.135206] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.393499] bond0: (slave eth0): Releasing backup interface
[  506.507192] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.677068] bond0: (slave eth0): Releasing backup interface
[  510.714940] bond0 (unregistering): Released all slaves