[  515.177438] bond0: (slave eth0): making interface the new active one
[  515.177561] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.384391] bond0: (slave eth0): Releasing backup interface
[  519.459787] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.609406] bond0: (slave eth0): Releasing backup interface
[  523.639460] bond0 (unregistering): Released all slaves