[  502.572241] bond0: (slave eth0): making interface the new active one
[  502.572336] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.777298] bond0: (slave eth0): Releasing backup interface
[  506.862389] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.072124] bond0: (slave eth0): Releasing backup interface
[  511.102754] bond0 (unregistering): Released all slaves