[  514.464163] bond0: (slave eth0): making interface the new active one
[  514.464262] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.685129] bond0: (slave eth0): Releasing backup interface
[  518.807673] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.027934] bond0: (slave eth0): Releasing backup interface
[  523.053773] bond0 (unregistering): Released all slaves