[  515.681673] bond0: (slave eth0): making interface the new active one
[  515.681743] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.896490] bond0: (slave eth0): Releasing backup interface
[  520.001021] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.181016] bond0: (slave eth0): Releasing backup interface
[  524.208958] bond0 (unregistering): Released all slaves