[  514.560113] bond0: (slave eth0): making interface the new active one
[  514.560186] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.812272] bond0: (slave eth0): Releasing backup interface
[  518.924742] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.095004] bond0: (slave eth0): Releasing backup interface
[  523.140921] bond0 (unregistering): Released all slaves