[  504.280333] bond0: (slave eth0): making interface the new active one
[  504.280409] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.425110] bond0: (slave eth0): Releasing backup interface
[  508.496993] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.650436] bond0: (slave eth0): Releasing backup interface
[  512.678351] bond0 (unregistering): Released all slaves