[  502.571310] bond0: (slave eth0): making interface the new active one
[  502.571394] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.773774] bond0: (slave eth0): Releasing backup interface
[  506.868814] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.062968] bond0: (slave eth0): Releasing backup interface
[  511.082707] bond0 (unregistering): Released all slaves