[  503.417614] bond0: (slave eth0): making interface the new active one
[  503.417695] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.601793] bond0: (slave eth0): Releasing backup interface
[  507.679852] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.826403] bond0: (slave eth0): Releasing backup interface
[  511.852279] bond0 (unregistering): Released all slaves