[  503.318478] bond0: (slave eth0): making interface the new active one
[  503.318550] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.532783] bond0: (slave eth0): Releasing backup interface
[  507.620802] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.828139] bond0: (slave eth0): Releasing backup interface
[  511.863764] bond0 (unregistering): Released all slaves