[  515.993184] bond0: (slave eth0): making interface the new active one
[  515.993275] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.217892] bond0: (slave eth0): Releasing backup interface
[  520.328283] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.513191] bond0: (slave eth0): Releasing backup interface
[  524.543045] bond0 (unregistering): Released all slaves