[  502.308506] bond0: (slave eth0): making interface the new active one
[  502.308608] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.515208] bond0: (slave eth0): Releasing backup interface
[  506.599195] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.745558] bond0: (slave eth0): Releasing backup interface
[  510.775396] bond0 (unregistering): Released all slaves