[  520.745370] bond0: (slave eth0): making interface the new active one
[  520.745490] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.943096] bond0: (slave eth0): Releasing backup interface
[  525.020788] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.171518] bond0: (slave eth0): Releasing backup interface
[  529.203505] bond0 (unregistering): Released all slaves