[  505.198454] bond0: (slave eth0): making interface the new active one
[  505.198537] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.397805] bond0: (slave eth0): Releasing backup interface
[  509.467610] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.622376] bond0: (slave eth0): Releasing backup interface
[  513.657226] bond0 (unregistering): Released all slaves