[  517.637255] bond0: (slave eth0): making interface the new active one
[  517.637352] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.881200] bond0: (slave eth0): Releasing backup interface
[  521.985837] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.164206] bond0: (slave eth0): Releasing backup interface
[  526.198149] bond0 (unregistering): Released all slaves