[  514.499783] bond0: (slave eth0): making interface the new active one
[  514.499856] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.748939] bond0: (slave eth0): Releasing backup interface
[  518.859967] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.031058] bond0: (slave eth0): Releasing backup interface
[  523.061869] bond0 (unregistering): Released all slaves