[  520.177835] bond0: (slave eth0): making interface the new active one
[  520.177930] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.376796] bond0: (slave eth0): Releasing backup interface
[  524.476746] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.661049] bond0: (slave eth0): Releasing backup interface
[  528.683916] bond0 (unregistering): Released all slaves