[  519.897151] bond0: (slave eth0): making interface the new active one
[  519.897236] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.045386] bond0: (slave eth0): Releasing backup interface
[  524.119173] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.276523] bond0: (slave eth0): Releasing backup interface
[  528.311612] bond0 (unregistering): Released all slaves