[  521.453465] bond0: (slave eth0): making interface the new active one
[  521.453534] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.641387] bond0: (slave eth0): Releasing backup interface
[  525.706725] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.874926] bond0: (slave eth0): Releasing backup interface
[  529.905573] bond0 (unregistering): Released all slaves