[  517.089773] bond0: (slave eth0): making interface the new active one
[  517.089873] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.249494] bond0: (slave eth0): Releasing backup interface
[  521.316809] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.482571] bond0: (slave eth0): Releasing backup interface
[  525.521386] bond0 (unregistering): Released all slaves