[  513.125229] bond0: (slave eth0): making interface the new active one
[  513.125323] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.336384] bond0: (slave eth0): Releasing backup interface
[  517.458442] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.632135] bond0: (slave eth0): Releasing backup interface
[  521.669030] bond0 (unregistering): Released all slaves