[  507.947379] bond0: (slave eth0): making interface the new active one
[  507.947446] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.145623] bond0: (slave eth0): Releasing backup interface
[  512.247311] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.437868] bond0: (slave eth0): Releasing backup interface
[  516.467881] bond0 (unregistering): Released all slaves