[  502.527679] bond0: (slave eth0): making interface the new active one
[  502.527772] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.707108] bond0: (slave eth0): Releasing backup interface
[  506.772588] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.928871] bond0: (slave eth0): Releasing backup interface
[  510.949714] bond0 (unregistering): Released all slaves