[  506.622502] bond0: (slave eth0): making interface the new active one
[  506.622580] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.803573] bond0: (slave eth0): Releasing backup interface
[  510.898225] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.096952] bond0: (slave eth0): Releasing backup interface
[  515.121861] bond0 (unregistering): Released all slaves