[  517.396315] bond0: (slave eth0): making interface the new active one
[  517.396425] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.545947] bond0: (slave eth0): Releasing backup interface
[  521.604990] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.774997] bond0: (slave eth0): Releasing backup interface
[  525.804947] bond0 (unregistering): Released all slaves