[  517.372536] bond0: (slave eth0): making interface the new active one
[  517.372618] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.626224] bond0: (slave eth0): Releasing backup interface
[  521.717559] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.907132] bond0: (slave eth0): Releasing backup interface
[  525.938020] bond0 (unregistering): Released all slaves