[  504.829151] bond0: (slave eth0): making interface the new active one
[  504.829281] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.010227] bond0: (slave eth0): Releasing backup interface
[  509.084773] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.244672] bond0: (slave eth0): Releasing backup interface
[  513.273509] bond0 (unregistering): Released all slaves