[  509.701227] bond0: (slave eth0): making interface the new active one
[  509.701289] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.937929] bond0: (slave eth0): Releasing backup interface
[  514.032783] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.239702] bond0: (slave eth0): Releasing backup interface
[  518.263048] bond0 (unregistering): Released all slaves