[  501.183923] bond0: (slave eth0): making interface the new active one
[  501.184019] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.363379] bond0: (slave eth0): Releasing backup interface
[  505.442009] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.596318] bond0: (slave eth0): Releasing backup interface
[  509.630262] bond0 (unregistering): Released all slaves