[  521.740892] bond0: (slave eth0): making interface the new active one
[  521.740998] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.899445] bond0: (slave eth0): Releasing backup interface
[  525.970831] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.124213] bond0: (slave eth0): Releasing backup interface
[  530.153174] bond0 (unregistering): Released all slaves