[  511.610995] bond0: (slave eth0): making interface the new active one
[  511.611091] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.861126] bond0: (slave eth0): Releasing backup interface
[  515.977866] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.153714] bond0: (slave eth0): Releasing backup interface
[  520.198778] bond0 (unregistering): Released all slaves