[  517.749654] bond0: (slave eth0): making interface the new active one
[  517.749725] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.947289] bond0: (slave eth0): Releasing backup interface
[  522.046634] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.229914] bond0: (slave eth0): Releasing backup interface
[  526.255884] bond0 (unregistering): Released all slaves