[  515.919286] bond0: (slave eth0): making interface the new active one
[  515.919414] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.154557] bond0: (slave eth0): Releasing backup interface
[  520.275543] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.444273] bond0: (slave eth0): Releasing backup interface
[  524.480195] bond0 (unregistering): Released all slaves