[  516.377758] bond0: (slave eth0): making interface the new active one
[  516.377873] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.531633] bond0: (slave eth0): Releasing backup interface
[  520.613745] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.752272] bond0: (slave eth0): Releasing backup interface
[  524.774089] bond0 (unregistering): Released all slaves