[  521.228060] bond0: (slave eth0): making interface the new active one
[  521.228152] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.387352] bond0: (slave eth0): Releasing backup interface
[  525.462603] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.622192] bond0: (slave eth0): Releasing backup interface
[  529.665115] bond0 (unregistering): Released all slaves