[  505.580444] bond0: (slave eth0): making interface the new active one
[  505.580557] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.770006] bond0: (slave eth0): Releasing backup interface
[  509.843470] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.994686] bond0: (slave eth0): Releasing backup interface
[  514.022373] bond0 (unregistering): Released all slaves