[  521.378415] bond0: (slave eth0): making interface the new active one
[  521.378485] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.580601] bond0: (slave eth0): Releasing backup interface
[  525.663540] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.807394] bond0: (slave eth0): Releasing backup interface
[  529.835281] bond0 (unregistering): Released all slaves