[  505.049491] bond0: (slave eth0): making interface the new active one
[  505.049592] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.205487] bond0: (slave eth0): Releasing backup interface
[  509.280100] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.432430] bond0: (slave eth0): Releasing backup interface
[  513.472465] bond0 (unregistering): Released all slaves