[  520.891341] bond0: (slave eth0): making interface the new active one
[  520.891466] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.067411] bond0: (slave eth0): Releasing backup interface
[  525.136840] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.295856] bond0: (slave eth0): Releasing backup interface
[  529.314679] bond0 (unregistering): Released all slaves