[  521.059367] bond0: (slave eth0): making interface the new active one
[  521.059487] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.287175] bond0: (slave eth0): Releasing backup interface
[  525.432356] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.639049] bond0: (slave eth0): Releasing backup interface
[  529.675115] bond0 (unregistering): Released all slaves