[  509.087273] bond0: (slave eth0): making interface the new active one
[  509.087363] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.296846] bond0: (slave eth0): Releasing backup interface
[  513.376396] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.524410] bond0: (slave eth0): Releasing backup interface
[  517.553386] bond0 (unregistering): Released all slaves