[  505.240448] bond0: (slave eth0): making interface the new active one
[  505.240516] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.447659] bond0: (slave eth0): Releasing backup interface
[  509.526337] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.673252] bond0: (slave eth0): Releasing backup interface
[  513.700209] bond0 (unregistering): Released all slaves