[  517.267527] bond0: (slave eth0): making interface the new active one
[  517.267601] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.485069] bond0: (slave eth0): Releasing backup interface
[  521.559811] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.715751] bond0: (slave eth0): Releasing backup interface
[  525.741740] bond0 (unregistering): Released all slaves