[  502.575900] bond0: (slave eth0): making interface the new active one
[  502.575977] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.761371] bond0: (slave eth0): Releasing backup interface
[  506.832807] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.984462] bond0: (slave eth0): Releasing backup interface
[  511.016312] bond0 (unregistering): Released all slaves