[  505.559490] bond0: (slave eth0): making interface the new active one
[  505.559643] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.712372] bond0: (slave eth0): Releasing backup interface
[  509.786415] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.947445] bond0: (slave eth0): Releasing backup interface
[  513.978481] bond0 (unregistering): Released all slaves