[  521.137926] bond0: (slave eth0): making interface the new active one
[  521.138029] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.318355] bond0: (slave eth0): Releasing backup interface
[  525.393453] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.542254] bond0: (slave eth0): Releasing backup interface
[  529.578188] bond0 (unregistering): Released all slaves