[  516.762210] bond0: (slave eth0): making interface the new active one
[  516.762300] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.909595] bond0: (slave eth0): Releasing backup interface
[  520.984856] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.130114] bond0: (slave eth0): Releasing backup interface
[  525.156112] bond0 (unregistering): Released all slaves