[  517.352984] bond0: (slave eth0): making interface the new active one
[  517.353077] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.549407] bond0: (slave eth0): Releasing backup interface
[  521.638826] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.779759] bond0: (slave eth0): Releasing backup interface
[  525.808762] bond0 (unregistering): Released all slaves