[  502.012008] bond0: (slave eth0): making interface the new active one
[  502.012087] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.191885] bond0: (slave eth0): Releasing backup interface
[  506.264529] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.417478] bond0: (slave eth0): Releasing backup interface
[  510.459391] bond0 (unregistering): Released all slaves