[  517.115810] bond0: (slave eth0): making interface the new active one
[  517.115895] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.368879] bond0: (slave eth0): Releasing backup interface
[  521.476289] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.653054] bond0: (slave eth0): Releasing backup interface
[  525.688949] bond0 (unregistering): Released all slaves