[  515.755296] bond0: (slave eth0): making interface the new active one
[  515.755420] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.953947] bond0: (slave eth0): Releasing backup interface
[  520.031378] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.189747] bond0: (slave eth0): Releasing backup interface
[  524.226257] bond0 (unregistering): Released all slaves