[  524.166913] bond0: (slave eth0): making interface the new active one
[  524.166990] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.335066] bond0: (slave eth0): Releasing backup interface
[  528.416665] bond0: (slave eth0): Enslaving as an active interface with an up link
[  532.559244] bond0: (slave eth0): Releasing backup interface
[  532.584148] bond0 (unregistering): Released all slaves