[  513.852213] bond0: (slave eth0): making interface the new active one
[  513.852420] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.049782] bond0: (slave eth0): Releasing backup interface
[  518.142646] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.332444] bond0: (slave eth0): Releasing backup interface
[  522.364379] bond0 (unregistering): Released all slaves