[  515.787153] bond0: (slave eth0): making interface the new active one
[  515.787254] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.023601] bond0: (slave eth0): Releasing backup interface
[  520.120973] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.305182] bond0: (slave eth0): Releasing backup interface
[  524.351278] bond0 (unregistering): Released all slaves