[  517.638668] bond0: (slave eth0): making interface the new active one
[  517.638743] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.883508] bond0: (slave eth0): Releasing backup interface
[  521.980247] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.170085] bond0: (slave eth0): Releasing backup interface
[  526.194962] bond0 (unregistering): Released all slaves