[  521.140910] bond0: (slave eth0): making interface the new active one
[  521.140990] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.333099] bond0: (slave eth0): Releasing backup interface
[  525.425273] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.614781] bond0: (slave eth0): Releasing backup interface
[  529.663739] bond0 (unregistering): Released all slaves