[  514.777157] bond0: (slave eth0): making interface the new active one
[  514.777228] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.004205] bond0: (slave eth0): Releasing backup interface
[  519.113774] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.297111] bond0: (slave eth0): Releasing backup interface
[  523.336968] bond0 (unregistering): Released all slaves