[  504.747228] bond0: (slave eth0): making interface the new active one
[  504.747303] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.946009] bond0: (slave eth0): Releasing backup interface
[  509.017301] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.173741] bond0: (slave eth0): Releasing backup interface
[  513.204353] bond0 (unregistering): Released all slaves