[  521.874940] bond0: (slave eth0): making interface the new active one
[  521.875026] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.098220] bond0: (slave eth0): Releasing backup interface
[  526.188218] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.384899] bond0: (slave eth0): Releasing backup interface
[  530.416857] bond0 (unregistering): Released all slaves