[  515.044594] bond0: (slave eth0): making interface the new active one
[  515.044668] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.186316] bond0: (slave eth0): Releasing backup interface
[  519.260759] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.413231] bond0: (slave eth0): Releasing backup interface
[  523.451247] bond0 (unregistering): Released all slaves