[  521.346935] bond0: (slave eth0): making interface the new active one
[  521.347029] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.516187] bond0: (slave eth0): Releasing backup interface
[  525.580601] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.739268] bond0: (slave eth0): Releasing backup interface
[  529.771195] bond0 (unregistering): Released all slaves