[  521.064250] bond0: (slave eth0): making interface the new active one
[  521.064355] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.260546] bond0: (slave eth0): Releasing backup interface
[  525.337262] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.483417] bond0: (slave eth0): Releasing backup interface
[  529.526086] bond0 (unregistering): Released all slaves