[  520.003996] bond0: (slave eth0): making interface the new active one
[  520.004140] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.174652] bond0: (slave eth0): Releasing backup interface
[  524.253581] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.395515] bond0: (slave eth0): Releasing backup interface
[  528.430375] bond0 (unregistering): Released all slaves