[  513.572130] bond0: (slave eth0): making interface the new active one
[  513.572215] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.784119] bond0: (slave eth0): Releasing backup interface
[  517.897098] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.069068] bond0: (slave eth0): Releasing backup interface
[  522.094037] bond0 (unregistering): Released all slaves