[  521.049609] bond0: (slave eth0): making interface the new active one
[  521.049689] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.214284] bond0: (slave eth0): Releasing backup interface
[  525.291301] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.441213] bond0: (slave eth0): Releasing backup interface
[  529.464102] bond0 (unregistering): Released all slaves