[  521.780146] bond0: (slave eth0): making interface the new active one
[  521.780230] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.980604] bond0: (slave eth0): Releasing backup interface
[  526.096268] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.263179] bond0: (slave eth0): Releasing backup interface
[  530.293619] bond0 (unregistering): Released all slaves