[  513.762225] bond0: (slave eth0): making interface the new active one
[  513.762289] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.896064] bond0: (slave eth0): Releasing backup interface
[  517.963382] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.123995] bond0: (slave eth0): Releasing backup interface
[  522.150025] bond0 (unregistering): Released all slaves