[  517.203076] bond0: (slave eth0): making interface the new active one
[  517.203155] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.352663] bond0: (slave eth0): Releasing backup interface
[  521.414632] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.582381] bond0: (slave eth0): Releasing backup interface
[  525.612288] bond0 (unregistering): Released all slaves