[  520.251979] bond0: (slave eth0): making interface the new active one
[  520.252138] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.430760] bond0: (slave eth0): Releasing backup interface
[  524.502907] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.658477] bond0: (slave eth0): Releasing backup interface
[  528.692345] bond0 (unregistering): Released all slaves