[  521.623911] bond0: (slave eth0): making interface the new active one
[  521.623980] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.778554] bond0: (slave eth0): Releasing backup interface
[  525.863732] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.005466] bond0: (slave eth0): Releasing backup interface
[  530.046484] bond0 (unregistering): Released all slaves