[  503.588881] bond0: (slave eth0): making interface the new active one
[  503.588986] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.791398] bond0: (slave eth0): Releasing backup interface
[  507.861754] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.023098] bond0: (slave eth0): Releasing backup interface
[  512.055095] bond0 (unregistering): Released all slaves