[  517.454214] bond0: (slave eth0): making interface the new active one
[  517.454382] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.617644] bond0: (slave eth0): Releasing backup interface
[  521.694117] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.850301] bond0: (slave eth0): Releasing backup interface
[  525.882211] bond0 (unregistering): Released all slaves