[  515.683181] bond0: (slave eth0): making interface the new active one
[  515.683261] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.896466] bond0: (slave eth0): Releasing backup interface
[  520.009844] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.185048] bond0: (slave eth0): Releasing backup interface
[  524.224995] bond0 (unregistering): Released all slaves