[  517.002902] bond0: (slave eth0): making interface the new active one
[  517.003026] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.159058] bond0: (slave eth0): Releasing backup interface
[  521.228514] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.387705] bond0: (slave eth0): Releasing backup interface
[  525.410677] bond0 (unregistering): Released all slaves