[  515.909173] bond0: (slave eth0): making interface the new active one
[  515.909265] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.155205] bond0: (slave eth0): Releasing backup interface
[  520.258450] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.436946] bond0: (slave eth0): Releasing backup interface
[  524.461950] bond0 (unregistering): Released all slaves