[  517.048393] bond0: (slave eth0): making interface the new active one
[  517.048465] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.232936] bond0: (slave eth0): Releasing backup interface
[  521.337865] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.527619] bond0: (slave eth0): Releasing backup interface
[  525.563541] bond0 (unregistering): Released all slaves