[  520.233568] bond0: (slave eth0): making interface the new active one
[  520.233681] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.435428] bond0: (slave eth0): Releasing backup interface
[  524.514689] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.666454] bond0: (slave eth0): Releasing backup interface
[  528.709294] bond0 (unregistering): Released all slaves