[  514.331957] bond0: (slave eth0): making interface the new active one
[  514.332052] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.480614] bond0: (slave eth0): Releasing backup interface
[  518.548465] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.705148] bond0: (slave eth0): Releasing backup interface
[  522.742214] bond0 (unregistering): Released all slaves