[  500.652232] bond0: (slave eth0): making interface the new active one
[  500.652332] bond0: (slave eth0): Enslaving as an active interface with an up link
[  504.841540] bond0: (slave eth0): Releasing backup interface
[  504.923569] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.070204] bond0: (slave eth0): Releasing backup interface
[  509.110132] bond0 (unregistering): Released all slaves