[  503.409679] bond0: (slave eth0): making interface the new active one
[  503.409841] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.603934] bond0: (slave eth0): Releasing backup interface
[  507.668592] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.830535] bond0: (slave eth0): Releasing backup interface
[  511.859396] bond0 (unregistering): Released all slaves