[  521.628144] bond0: (slave eth0): making interface the new active one
[  521.628245] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.779203] bond0: (slave eth0): Releasing backup interface
[  525.839883] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.008280] bond0: (slave eth0): Releasing backup interface
[  530.038200] bond0 (unregistering): Released all slaves