[  517.505341] bond0: (slave eth0): making interface the new active one
[  517.505423] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.685291] bond0: (slave eth0): Releasing backup interface
[  521.756786] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.914265] bond0: (slave eth0): Releasing backup interface
[  525.945992] bond0 (unregistering): Released all slaves