[  511.688502] bond0: (slave eth0): making interface the new active one
[  511.688581] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.927150] bond0: (slave eth0): Releasing backup interface
[  516.045459] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.213006] bond0: (slave eth0): Releasing backup interface
[  520.244951] bond0 (unregistering): Released all slaves