[  509.784575] bond0: (slave eth0): making interface the new active one
[  509.784653] bond0: (slave eth0): Enslaving as an active interface with an up link
[  514.002576] bond0: (slave eth0): Releasing backup interface
[  514.107381] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.292753] bond0: (slave eth0): Releasing backup interface
[  518.329697] bond0 (unregistering): Released all slaves