[  521.407643] bond0: (slave eth0): making interface the new active one
[  521.407728] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.586563] bond0: (slave eth0): Releasing backup interface
[  525.660699] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.812335] bond0: (slave eth0): Releasing backup interface
[  529.837299] bond0 (unregistering): Released all slaves