[  514.920922] bond0: (slave eth0): making interface the new active one
[  514.921021] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.125145] bond0: (slave eth0): Releasing backup interface
[  519.243105] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.413751] bond0: (slave eth0): Releasing backup interface
[  523.439640] bond0 (unregistering): Released all slaves