[  514.558018] bond0: (slave eth0): making interface the new active one
[  514.558110] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.815694] bond0: (slave eth0): Releasing backup interface
[  518.924075] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.105360] bond0: (slave eth0): Releasing backup interface
[  523.129219] bond0 (unregistering): Released all slaves