[  516.568500] bond0: (slave eth0): making interface the new active one
[  516.568597] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.797616] bond0: (slave eth0): Releasing backup interface
[  520.902734] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.088102] bond0: (slave eth0): Releasing backup interface
[  525.134073] bond0 (unregistering): Released all slaves