[  503.381813] bond0: (slave eth0): making interface the new active one
[  503.381910] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.540512] bond0: (slave eth0): Releasing backup interface
[  507.613031] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.761395] bond0: (slave eth0): Releasing backup interface
[  511.792350] bond0 (unregistering): Released all slaves