[  505.146363] bond0: (slave eth0): making interface the new active one
[  505.146470] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.333590] bond0: (slave eth0): Releasing backup interface
[  509.422688] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.626442] bond0: (slave eth0): Releasing backup interface
[  513.664237] bond0 (unregistering): Released all slaves