[  515.750338] bond0: (slave eth0): making interface the new active one
[  515.750440] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.955048] bond0: (slave eth0): Releasing backup interface
[  520.050962] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.245106] bond0: (slave eth0): Releasing backup interface
[  524.273019] bond0 (unregistering): Released all slaves