[  515.172865] bond0: (slave eth0): making interface the new active one
[  515.172993] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.458700] bond0: (slave eth0): Releasing backup interface
[  519.595952] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.808188] bond0: (slave eth0): Releasing backup interface
[  523.847024] bond0 (unregistering): Released all slaves