[  521.314501] bond0: (slave eth0): making interface the new active one
[  521.314580] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.454280] bond0: (slave eth0): Releasing backup interface
[  525.528608] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.675635] bond0: (slave eth0): Releasing backup interface
[  529.701493] bond0 (unregistering): Released all slaves