[  500.112812] bond0: (slave eth0): making interface the new active one
[  500.112941] bond0: (slave eth0): Enslaving as an active interface with an up link
[  504.269265] bond0: (slave eth0): Releasing backup interface
[  504.325502] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.502451] bond0: (slave eth0): Releasing backup interface
[  508.531966] bond0 (unregistering): Released all slaves