[  503.778037] bond0: (slave eth0): making interface the new active one
[  503.778164] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.973548] bond0: (slave eth0): Releasing backup interface
[  508.039056] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.203416] bond0: (slave eth0): Releasing backup interface
[  512.232230] bond0 (unregistering): Released all slaves