[  519.981322] bond0: (slave eth0): making interface the new active one
[  519.981454] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.174248] bond0: (slave eth0): Releasing backup interface
[  524.257017] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.403782] bond0: (slave eth0): Releasing backup interface
[  528.433811] bond0 (unregistering): Released all slaves