[  515.129881] bond0: (slave eth0): making interface the new active one
[  515.129950] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.320886] bond0: (slave eth0): Releasing backup interface
[  519.444991] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.609921] bond0: (slave eth0): Releasing backup interface
[  523.645944] bond0 (unregistering): Released all slaves