[  521.271679] bond0: (slave eth0): making interface the new active one
[  521.271814] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.422679] bond0: (slave eth0): Releasing backup interface
[  525.504451] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.645383] bond0: (slave eth0): Releasing backup interface
[  529.675268] bond0 (unregistering): Released all slaves