[  502.920736] bond0: (slave eth0): making interface the new active one
[  502.920826] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.092643] bond0: (slave eth0): Releasing backup interface
[  507.159851] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.320277] bond0: (slave eth0): Releasing backup interface
[  511.359276] bond0 (unregistering): Released all slaves