[  516.804616] bond0: (slave eth0): making interface the new active one
[  516.804695] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.014290] bond0: (slave eth0): Releasing backup interface
[  521.110006] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.296235] bond0: (slave eth0): Releasing backup interface
[  525.340263] bond0 (unregistering): Released all slaves