[  515.781267] bond0: (slave eth0): making interface the new active one
[  515.781354] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.029233] bond0: (slave eth0): Releasing backup interface
[  520.151091] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.385193] bond0: (slave eth0): Releasing backup interface
[  524.418256] bond0 (unregistering): Released all slaves