[  515.466853] bond0: (slave eth0): making interface the new active one
[  515.466953] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.706505] bond0: (slave eth0): Releasing backup interface
[  519.834699] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.063139] bond0: (slave eth0): Releasing backup interface
[  524.097011] bond0 (unregistering): Released all slaves