[  521.375003] bond0: (slave eth0): making interface the new active one
[  521.375113] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.584922] bond0: (slave eth0): Releasing backup interface
[  525.653428] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.811433] bond0: (slave eth0): Releasing backup interface
[  529.850339] bond0 (unregistering): Released all slaves