[  516.685467] bond0: (slave eth0): making interface the new active one
[  516.685550] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.859120] bond0: (slave eth0): Releasing backup interface
[  520.931623] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.090540] bond0: (slave eth0): Releasing backup interface
[  525.110427] bond0 (unregistering): Released all slaves