[  517.166456] bond0: (slave eth0): making interface the new active one
[  517.166557] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.371679] bond0: (slave eth0): Releasing backup interface
[  521.490483] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.715108] bond0: (slave eth0): Releasing backup interface
[  525.742048] bond0 (unregistering): Released all slaves