[  515.128439] bond0: (slave eth0): making interface the new active one
[  515.128545] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.388002] bond0: (slave eth0): Releasing backup interface
[  519.503074] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.675092] bond0: (slave eth0): Releasing backup interface
[  523.695979] bond0 (unregistering): Released all slaves