[  661.213104] bond0: (slave eth0): making interface the new active one
[  661.213193] bond0: (slave eth0): Enslaving as an active interface with an up link
[  665.419547] bond0: (slave eth0): Releasing backup interface
[  665.496145] bond0: (slave eth0): Enslaving as an active interface with an up link
[  669.640174] bond0: (slave eth0): Releasing backup interface
[  669.657187] bond0 (unregistering): Released all slaves