[  516.250461] bond0: (slave eth0): making interface the new active one
[  516.250538] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.483624] bond0: (slave eth0): Releasing backup interface
[  520.600644] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.764583] bond0: (slave eth0): Releasing backup interface
[  524.787578] bond0 (unregistering): Released all slaves