[  519.851543] bond0: (slave eth0): making interface the new active one
[  519.851628] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.039896] bond0: (slave eth0): Releasing backup interface
[  524.104284] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.270384] bond0: (slave eth0): Releasing backup interface
[  528.303340] bond0 (unregistering): Released all slaves