[  513.814811] bond0: (slave eth0): making interface the new active one
[  513.814888] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.043114] bond0: (slave eth0): Releasing backup interface
[  518.154340] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.320899] bond0: (slave eth0): Releasing backup interface
[  522.347743] bond0 (unregistering): Released all slaves