[  500.582712] bond0: (slave eth0): making interface the new active one
[  500.582796] bond0: (slave eth0): Enslaving as an active interface with an up link
[  504.786831] bond0: (slave eth0): Releasing backup interface
[  504.864780] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.021356] bond0: (slave eth0): Releasing backup interface
[  509.051271] bond0 (unregistering): Released all slaves