[  504.694152] bond0: (slave eth0): making interface the new active one
[  504.694275] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.887291] bond0: (slave eth0): Releasing backup interface
[  508.958181] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.116554] bond0: (slave eth0): Releasing backup interface
[  513.150402] bond0 (unregistering): Released all slaves