[  503.217511] bond0: (slave eth0): making interface the new active one
[  503.217592] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.407368] bond0: (slave eth0): Releasing backup interface
[  507.502850] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.699035] bond0: (slave eth0): Releasing backup interface
[  511.729974] bond0 (unregistering): Released all slaves