[  503.965785] bond0: (slave eth0): making interface the new active one
[  503.965882] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.117892] bond0: (slave eth0): Releasing backup interface
[  508.193568] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.342445] bond0: (slave eth0): Releasing backup interface
[  512.378471] bond0 (unregistering): Released all slaves