[  507.587985] bond0: (slave eth0): making interface the new active one
[  507.588073] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.836379] bond0: (slave eth0): Releasing backup interface
[  511.941776] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.131051] bond0: (slave eth0): Releasing backup interface
[  516.160995] bond0 (unregistering): Released all slaves