[  521.268927] bond0: (slave eth0): making interface the new active one
[  521.269010] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.457438] bond0: (slave eth0): Releasing backup interface
[  525.535909] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.685406] bond0: (slave eth0): Releasing backup interface
[  529.722363] bond0 (unregistering): Released all slaves