[  502.140081] bond0: (slave eth0): making interface the new active one
[  502.140194] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.327232] bond0: (slave eth0): Releasing backup interface
[  506.400722] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.554510] bond0: (slave eth0): Releasing backup interface
[  510.579468] bond0 (unregistering): Released all slaves