[  517.068468] bond0: (slave eth0): making interface the new active one
[  517.068550] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.316650] bond0: (slave eth0): Releasing backup interface
[  521.418162] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.605436] bond0: (slave eth0): Releasing backup interface
[  525.641293] bond0 (unregistering): Released all slaves