[  514.978907] bond0: (slave eth0): making interface the new active one
[  514.979018] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.184609] bond0: (slave eth0): Releasing backup interface
[  519.258718] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.408285] bond0: (slave eth0): Releasing backup interface
[  523.441177] bond0 (unregistering): Released all slaves