[  503.172588] bond0: (slave eth0): making interface the new active one
[  503.172680] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.343037] bond0: (slave eth0): Releasing backup interface
[  507.426846] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.565534] bond0: (slave eth0): Releasing backup interface
[  511.591432] bond0 (unregistering): Released all slaves