[  504.604259] bond0: (slave eth0): making interface the new active one
[  504.604342] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.760630] bond0: (slave eth0): Releasing backup interface
[  508.831875] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.995925] bond0: (slave eth0): Releasing backup interface
[  513.040529] bond0 (unregistering): Released all slaves