[  513.856180] bond0: (slave eth0): making interface the new active one
[  513.856246] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.045615] bond0: (slave eth0): Releasing backup interface
[  518.160663] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.337090] bond0: (slave eth0): Releasing backup interface
[  522.368007] bond0 (unregistering): Released all slaves