[  513.044139] bond0: (slave eth0): making interface the new active one
[  513.044225] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.271900] bond0: (slave eth0): Releasing backup interface
[  517.356193] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.559087] bond0: (slave eth0): Releasing backup interface
[  521.589029] bond0 (unregistering): Released all slaves