[  513.394309] bond0: (slave eth0): making interface the new active one
[  513.394419] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.597804] bond0: (slave eth0): Releasing backup interface
[  517.691201] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.882957] bond0: (slave eth0): Releasing backup interface
[  521.915918] bond0 (unregistering): Released all slaves