[  517.135713] bond0: (slave eth0): making interface the new active one
[  517.135811] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.305789] bond0: (slave eth0): Releasing backup interface
[  521.400899] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.590334] bond0: (slave eth0): Releasing backup interface
[  525.618277] bond0 (unregistering): Released all slaves