[  521.736275] bond0: (slave eth0): making interface the new active one
[  521.736384] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.968848] bond0: (slave eth0): Releasing backup interface
[  526.053787] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.255627] bond0: (slave eth0): Releasing backup interface
[  530.290602] bond0 (unregistering): Released all slaves