[  503.677635] bond0: (slave eth0): making interface the new active one
[  503.677719] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.865158] bond0: (slave eth0): Releasing backup interface
[  507.943165] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.087386] bond0: (slave eth0): Releasing backup interface
[  512.133429] bond0 (unregistering): Released all slaves