[  515.833051] bond0: (slave eth0): making interface the new active one
[  515.833127] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.017529] bond0: (slave eth0): Releasing backup interface
[  520.099176] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.240159] bond0: (slave eth0): Releasing backup interface
[  524.273132] bond0 (unregistering): Released all slaves