[  514.559627] bond0: (slave eth0): making interface the new active one
[  514.559712] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.752967] bond0: (slave eth0): Releasing backup interface
[  518.861177] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.046010] bond0: (slave eth0): Releasing backup interface
[  523.079016] bond0 (unregistering): Released all slaves