[  517.029873] bond0: (slave eth0): making interface the new active one
[  517.029991] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.236101] bond0: (slave eth0): Releasing backup interface
[  521.319598] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.465326] bond0: (slave eth0): Releasing backup interface
[  525.496129] bond0 (unregistering): Released all slaves