[  521.611429] bond0: (slave eth0): making interface the new active one
[  521.611538] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.769374] bond0: (slave eth0): Releasing backup interface
[  525.844013] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.001091] bond0: (slave eth0): Releasing backup interface
[  530.024140] bond0 (unregistering): Released all slaves