[  499.427441] bond0: (slave eth0): making interface the new active one
[  499.427557] bond0: (slave eth0): Enslaving as an active interface with an up link
[  503.624348] bond0: (slave eth0): Releasing backup interface
[  503.699777] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.846338] bond0: (slave eth0): Releasing backup interface
[  507.881208] bond0 (unregistering): Released all slaves