[  521.163656] bond0: (slave eth0): making interface the new active one
[  521.163739] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.323167] bond0: (slave eth0): Releasing backup interface
[  525.389153] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.547622] bond0: (slave eth0): Releasing backup interface
[  529.578404] bond0 (unregistering): Released all slaves