[  521.358628] bond0: (slave eth0): making interface the new active one
[  521.358693] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.520880] bond0: (slave eth0): Releasing backup interface
[  525.602995] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.743779] bond0: (slave eth0): Releasing backup interface
[  529.784658] bond0 (unregistering): Released all slaves