[  517.343842] bond0: (slave eth0): making interface the new active one
[  517.343938] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.570248] bond0: (slave eth0): Releasing backup interface
[  521.677124] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.849899] bond0: (slave eth0): Releasing backup interface
[  525.880922] bond0 (unregistering): Released all slaves