[  517.730976] bond0: (slave eth0): making interface the new active one
[  517.731053] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.935628] bond0: (slave eth0): Releasing backup interface
[  522.005533] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.158030] bond0: (slave eth0): Releasing backup interface
[  526.185995] bond0 (unregistering): Released all slaves