[  514.300787] bond0: (slave eth0): making interface the new active one
[  514.300907] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.483444] bond0: (slave eth0): Releasing backup interface
[  518.555886] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.712250] bond0: (slave eth0): Releasing backup interface
[  522.739232] bond0 (unregistering): Released all slaves