[  503.112168] bond0: (slave eth0): making interface the new active one
[  503.112243] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.285066] bond0: (slave eth0): Releasing backup interface
[  507.359362] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.507387] bond0: (slave eth0): Releasing backup interface
[  511.548324] bond0 (unregistering): Released all slaves