[  516.422388] bond0: (slave eth0): making interface the new active one
[  516.422491] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.673162] bond0: (slave eth0): Releasing backup interface
[  520.785886] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.949173] bond0: (slave eth0): Releasing backup interface
[  524.983036] bond0 (unregistering): Released all slaves