[  517.678882] bond0: (slave eth0): making interface the new active one
[  517.678954] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.881222] bond0: (slave eth0): Releasing backup interface
[  521.987902] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.169098] bond0: (slave eth0): Releasing backup interface
[  526.194003] bond0 (unregistering): Released all slaves