[  505.129979] bond0: (slave eth0): making interface the new active one
[  505.130056] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.328698] bond0: (slave eth0): Releasing backup interface
[  509.397276] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.565397] bond0: (slave eth0): Releasing backup interface
[  513.605362] bond0 (unregistering): Released all slaves