[  514.864643] bond0: (slave eth0): making interface the new active one
[  514.864733] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.065969] bond0: (slave eth0): Releasing backup interface
[  519.160863] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.355846] bond0: (slave eth0): Releasing backup interface
[  523.383827] bond0 (unregistering): Released all slaves