[  504.019218] bond0: (slave eth0): making interface the new active one
[  504.019304] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.241115] bond0: (slave eth0): Releasing backup interface
[  508.329483] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.525699] bond0: (slave eth0): Releasing backup interface
[  512.558652] bond0 (unregistering): Released all slaves