[  517.691636] bond0: (slave eth0): making interface the new active one
[  517.691760] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.902221] bond0: (slave eth0): Releasing backup interface
[  521.974178] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.122720] bond0: (slave eth0): Releasing backup interface
[  526.149416] bond0 (unregistering): Released all slaves