[  504.680853] bond0: (slave eth0): making interface the new active one
[  504.680932] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.886220] bond0: (slave eth0): Releasing backup interface
[  509.000338] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.174974] bond0: (slave eth0): Releasing backup interface
[  513.212943] bond0 (unregistering): Released all slaves