[  504.693694] bond0: (slave eth0): making interface the new active one
[  504.693759] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.882180] bond0: (slave eth0): Releasing backup interface
[  508.956831] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.107176] bond0: (slave eth0): Releasing backup interface
[  513.137123] bond0 (unregistering): Released all slaves