[  501.148156] bond0: (slave eth0): making interface the new active one
[  501.148249] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.357274] bond0: (slave eth0): Releasing backup interface
[  505.427950] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.581289] bond0: (slave eth0): Releasing backup interface
[  509.604159] bond0 (unregistering): Released all slaves