[  521.519920] bond0: (slave eth0): making interface the new active one
[  521.520001] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.708654] bond0: (slave eth0): Releasing backup interface
[  525.780969] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.937307] bond0: (slave eth0): Releasing backup interface
[  529.963285] bond0 (unregistering): Released all slaves