[  521.400736] bond0: (slave eth0): making interface the new active one
[  521.400822] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.588284] bond0: (slave eth0): Releasing backup interface
[  525.652087] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.809451] bond0: (slave eth0): Releasing backup interface
[  529.842448] bond0 (unregistering): Released all slaves