[  519.904713] bond0: (slave eth0): making interface the new active one
[  519.904798] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.122356] bond0: (slave eth0): Releasing backup interface
[  524.238862] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.411965] bond0: (slave eth0): Releasing backup interface
[  528.433890] bond0 (unregistering): Released all slaves