[  514.578129] bond0: (slave eth0): making interface the new active one
[  514.578212] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.816212] bond0: (slave eth0): Releasing backup interface
[  518.921885] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.103111] bond0: (slave eth0): Releasing backup interface
[  523.135091] bond0 (unregistering): Released all slaves