[  510.920406] bond0: (slave eth0): making interface the new active one
[  510.920507] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.166335] bond0: (slave eth0): Releasing backup interface
[  515.298734] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.524240] bond0: (slave eth0): Releasing backup interface
[  519.545134] bond0 (unregistering): Released all slaves