[  503.386505] bond0: (slave eth0): making interface the new active one
[  503.386575] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.539201] bond0: (slave eth0): Releasing backup interface
[  507.608993] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.768759] bond0: (slave eth0): Releasing backup interface
[  511.802339] bond0 (unregistering): Released all slaves