[  515.648266] bond0: (slave eth0): making interface the new active one
[  515.648348] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.902130] bond0: (slave eth0): Releasing backup interface
[  520.026322] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.251016] bond0: (slave eth0): Releasing backup interface
[  524.277996] bond0 (unregistering): Released all slaves