[  516.469529] bond0: (slave eth0): making interface the new active one
[  516.469624] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.672362] bond0: (slave eth0): Releasing backup interface
[  520.792001] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.022094] bond0: (slave eth0): Releasing backup interface
[  525.064084] bond0 (unregistering): Released all slaves